IMAGE  EVALUATION 
TEST  TARGET  (MT-3) 


1.0 


I.I 


11.25 


•  50     ""^^        111^ 


Ki 
tii 
us 

Ki 
Hi 


2.2 
2.0 


III 


1.4 


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Photographic 

Sciences 

Corporation 


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CIHM/ICMH 

Microfiche 

Series. 


CIHIVI/ICIVIH 
Collection  de 
microfiches. 


Canadian  Institute  for  Historical  Mif-roreproductions  /  Institut  Canadian  de  microreproductions  historiques 


Technical  and  Bibliographic  Notat/Notes  techniques  et  bibliographiques 


The  Institute  has  attempted  to  obtain  the  best 
original  copy  available  for  filming.  Features  of  this 
copy  which  may  be  bibliographically  unique, 
which  may  alter  any  of  the  images  in  the 
reproduction,  or  which  may  significantly  change 
the  usual  method  of  filming,  are  checked  below. 


D 


D 


D 
D 


D 
D 


D 


D 


Coloured  covers/ 
Couverture  de  couleur 


I      I    Covers  damaged/ 


Couverture  endommagAe 


Covers  restored  and/or  laminated/ 
Couverture  restaurie  et/ou  pelliculAe 


I      I    Cover  title  missing/ 


Le  titre  de  couverture  manque 


Coloured  mnps/ 

Cartes  g6ographiques  en  couleur 


Coloured  init  (i.e.  other  than  blue  or  black)/ 
Encre  de  couleur  (i.e.  autre  que  bleue  ou  noire) 


I      I    Coloured  plates  and/or  illustrations/ 


Planches  et/ou  illustrations  en  couleur 

Bound  with  other  material/ 
Reiii  avec  d'autres  documents 

Tight  binding  may  cause  shadows  or  distortion 
along  interior  margin/ 

La  re  liure  serrie  peut  causer  de  I'ombre  ou  de  la 
distortion  le  long  de  la  marge  intirieure 

Blank  leaves  added  during  restoration  may 
appear  within  the  text.  Whenever  possible,  these 
have  been  omitted  from  filming/ 
II  se  peut  que  certaines  pages  blanches  ajout6es 
lors  d'une  restauration  apparaissent  dans  le  texte, 
mais,  lorsque  cela  itait  possible,  ces  pages  n'ont 
pas  iti  filmies. 

Additional  comments:/ 
Commentaires  supplimentaires; 


L'Institut  a  microfilm^  le  meilleur  exemplaire 
qu'il  lui  a  M  possible  de  se  procurer.  Les  details 
de  cet  exemplaire  qui  sont  peut-Atre  uniques  du 
point  de  vue  bibliographique.  qui  peuvent  modifier 
une  image  reproduite,  ou  qui  peuvent  exiger  une 
modification  dans  la  m6thode  normale  de  filmage 
sont  indiquAs  ci-dessous. 


The 
toth 


I      I   Coloured  pages/ 


Pages  de  couleur 

Pages  damaged/ 
Pages  endommagies 

Pages  restored  and/oi 

Pages  restauries  et/ou  pelliculies 

Pages  discoloured,  stained  or  foxei 
Pages  dicolordes,  tachetdes  ou  piquies 


I      I    Pages  damaged/ 

I      I    Pages  restored  and/or  laminated/ 

FyK  Pages  discoloured,  stained  or  foxed/ 


The 
posi 
of  tl 
filml 


Orig 

begl 

the 

sion 

othfl 

first 

sion 

or  HI 


□    Pages  detached/ 
Pages  d^itachics 

r~3^Showt;>»rough/ 
I — I   Transparence 

I      I    Quality  of  print  varies/ 


Quality  indgale  de  I'impression 

Includes  supplementary  material/ 
Comprend  du  materiel  supplimentaire 

Only  edition  available/ 
Seule  Edition  disponible 


D 


Pages  wholly  or  pertially  obscured  by  errata 
slips,  tissues,  etc..  have  been  refilmed  to 
ensure  the  best  possible  image/ 
Les  pages  totalement  ou  partiellement 
obscurcies  par  un  feuillet  d'errata,  una  pelure, 
etc.,  ont  6ti  filmies  i  nouveau  de  fapon  A 
obtenir  la  meilleure  image  possible. 


The 
shai 
TINI 
whi< 

Ma; 
diffi 
enti 
beg 
righ 
reqi 
mml 


This  item  is  filmed  at  the  reduction  ratio  checks  below/ 

Ce  document  est  film6  au  taux  de  reduction  indiquA  ci-dessous. 


10X 

14X 

18X 

22X 

26X 

3i)X 

y 

12X 

16X 

20X 

a4X 

28X 

32X 

• 

Th«  copy  filmed  h«re  ha*  b««n  raproducad  thanka 
to  tha  ganaroaity  of: 

Metropolitan  Toronto  Library 
Science  &  Technology  Department 

Tha  imagaa  appaaring  hara  ara  tha  baat  quality 
poasibia  conaidaring  tha  condition  and  iagibility 
of  tha  original  copy  and  in  Icaaping  with  tha 
filming  contract  spacif Icationa. 


Original  copiaa  in  printad  papar  covara  ara  filmad 
beginning  with  tha  front  covar  and  anding  on 
tha  laat  paga  with  a  printad  or  illuatratad  impraa- 
aion.  or  tha  back  covar  whan  appropriata.  Ail 
othar  original  copiaa  ara  filmad  baginning  on  tha 
firat  paga  with  a  printad  or  illuatratad  Impraa- 
aion,  and  anding  on  tha  laat  paga  with  a  printad 
or  illuatratad  impraaaion. 


Tha  laat  racordad  frama  orvaach  microficha 
ahall  contain  tha  symbol  -^  (moaning  "CON- 
TINUED"), or  tha  symbol  ▼  (moaning  "END"), 
whichavar  applias. 

Mapa,  plataa.  charts,  ate,  may  ba  filmad  at 
diffarant  reduction  ratioa.  Thoaa  too  larga  to  ba 
entirely  included  in  one  expoaura  are  filmed 
beginning  in  the  upper  left  hand  corner,  left  to 
right  and  top  to  bottom,  aa  many  framea  aa 
required.  The  following  diagrams  illustrate  the 
method: 


1  2  3 


L'exemplaire  film*  fut  reproduit  grica  A  la 
g^nArositA  da: 

Metropolitan  Toronto  Library 
Science  &  Technology  Department 

Les  images  suivantas  ont  it*  rapfoduitas  avac  la 
plus  grand  soin.  compta  tanu  da  la  condition  at 
da  la  nattet*  do  I'exemplaira  film*,  at  an 
conformity  avac  las  conditions  du  contrat  da 
fllmage. 

Lea  axempiairea  originaux  dont  la  couvarture  an 
papier  eat  imprimte  sont  fiimAs  an  commandant 
par  la  premier  plat  at  an  tarminant  soit  par  la 
darnlAre  page  qui  comporte  une  emprainta 
d'impraaaion  ou  d'iliuatration,  soit  par  la  second 
plat,  salon  le  caa.  Toua  lea  autras  axamplairas 
originaux  aont  fllmis  an  commen^ant  par  la 
pramlAre  page  qui  comporte  une  empreintr: 
d'impresslon  ou  d'illustration  at  an  tarminant  par 
la  darniAre  page  qui  comporte  une  telle 
empreinte. 

Un  des  symboles  suivants  apparaftra  sur  la 
darniire  image  do  cheque  microfiche,  selon  le 
ces:  le  symbols  — ^  signifie  "A  SUIVRE",  la 
symbole  y  signifie  "FIN". 

Les  cartea,  planches,  tableaux,  etc..  peuvent  Atre 
filmis  A  des  taux  da  rMuction  diffirants. 
Lorsqua  le  document  est  trop  grand  pour  Atra 
reproduit  en  un  soul  clichA,  il  est  film*  A  partir 
da  Tangle  suptrieur  gauche,  do  gauchs  k  droite. 
et  de  haut  en  bas,  an  prenant  le  nombre 
d'imagea  nAcessaire.  ilea  diagrammas  suivants 
illustrant  la  mithoda. 


1 

2 

3 

4 

5 

6 

DIATOMACE^ 


n 


ot 


NORTH  AMERICA, 


ILLUSTRATED  WITH 


TWENTY-THREE  HUNDRED  FIGURES 


PROM   THE 


AUTHOR'S  DRAWINGS 


ON 


ONE  HUNDRED  AND  TWELVE  PLATES. 


BY  THE  REV.  FRANCIS  WOLLE, 

Authirr  of  "  Desmids  of  the  United  States;"   "Fresh  Water  Algip  of  the  United  States.' 


BETHLEHEM,  PA.: 

THE  COMENIUS  PRESS, 

1890. 


^%  '^^ 


V 


1' 

1 


'^6 
Profeseor  ^.  £.  Smith, 

OF  HOBART  COLI.KOE,  GENEVA,  N.  Y. 
THIS  WORK  IS 

iHebicateb 


WITH  GREAT  RESPECT  AND  ESTEEM 

BY   HIS  GRATEFUL  FRIEND, 

THE  AUTHOR. 


-'      I 


4 


PREFACE. 


THE  Diiitoms  liave  perhaps  been  more  thoroughly  studied 
than  the  other  Algie,  e8i)eciaUy  within  the  past  fifty  years. 
Among  the  noted  investigators  of  American  Diatoms  was  Dr. 
G.  C.  Ehrenberg,  of  Berlin,  Germany,  who  in  his  several  visits 
to  this  country,  made  careful  explorations  all  the  way  from  the 
Altantic  to  the  Pacific  coast.  His  labors  resulted  in  his  cele- 
brated work  on  Microgeologie  or  Microscopic  Organisms  (Diato- 
maceje)  published  1854-5(),  besides  numerous  short  papers  in  the 
Journals  of  the  Academy  of  the  Natural  Science  of  Berlin.  Pre- 
vious to  Ehrenberg's  publications,  Prof.  J.  N.  Bailey,  of  West 
Point,  N.  Y.,  turned  his  attention  to  the  Diatoms  of  the  United 
States,  and  frequently  contributed  papers  on  this  subject  to  the 
American  Journal  of  Sciences  and  Arts  (Siliman's  Journal) 
New  Haven.  In  IS.'iO  the  Smithsonian  Institute  published 
his  Microscopical  observations  in  South  Carolina,  Georgia 
and  Florida.  Somewhat  later,  A.  M.  Edwards  published 
several  papers  on  the  United  States  Diatomacese ;  and  J.  N. 
Lewis,  M.D.,  contributed  between  1861-65,  notes  on  ''New 
and  Barer  Species  of  Diatoms  of  the  United  States  Sea  Board;" 
"On  New  and  Singular  Forms,"  etc.  From  this  time  contribu- 
tions to  the  literature  of  Diatoms  became  more  numerous.  One 
of  the  most  valuable  of  them,  appeared  in  The  Lens,  Chicago, 
1872,  by  Prof.  H.  L.  Smith,  entitled  "A  Conspectus  of  the 
Families  and  Genera  of  the  Diatomaceaj."  Among  other  prom- 
inent investigators  are  Prof.  J.  D.  Cox,  of  the  Law  School  of 
Cincinnati,  Dr.  H.  H.  Chase,  of  Geneva,  N.  Y.,  and  later  of 
Michigan  ;  C.  S.  Peticola«,  of  Eichmond,  Va.,  an  industrious 
collector  of  the  fossil  Diatoms  in  his  vicinity  ;  Massrs.  Briggs 
and  Thomas,  of  Chicago,  whose  names  are  associated  with  the 
local  Diatomaceaj ;  Kain,  of  Philadelphia,  Pa.,  familiar  with  the 
forms  about  Atlantic  City,  N.  J.  ;  Shultze,  whose  field  is  Staten 
Island  and  the  neighborhood  of  New  York  City ;  Vorce,  of 
Cleveland,  Ohio,  Newcomer,  of  Indianapolis,  Ind.,  M.  A.  Booth, 
Longmeadow,  Mass.,  and  many  others,  all  of  whom  have  ren- 


▼I  DIATOMACKJO  <>F   NORTH    AMKKK'A. 

dered  valuable  service  as  collectors,  as  iirejiarers  of  specimens  or 
as  stiuleiitH  of  the  structure,  Imbits,  growth  and  development  of 
Diatoms. 

Among  foreign  writers  who  have  described  many  North 
American  forms  are  Ch.  Stodder,  who  described  the  diatomii- 
ceous  earth  found  at  Randolph,  Mass.,  Richmond,  Va.,  and  :it 
Santa  Monica,  Cal.  ;  B.  K.  Greville,  F.  Kitten,  C.  Janisch,  L. 
Rabenhorst,  A.  Grunow  and  others  are  associated  with  specu>s 
found  in  western  territories  and  waters  from  Vancouvers  Sound 
and  southward  across  the  Continent  to  Campeachy  Bay  and  the 
Gulf  of  Mexico. 

Upwards  of  oight  thousand  species  of  Diatoms  are  recorded 
in  Chase's  edition  of  Habirshaw's  Catalogue  of  the  Diatomacete 
of  the  world,  1888.  Of  these,  less  than  two  thousand  are  North 
American  species,  but  the  figures  and  descriptions  of  these  are 
scattered  through  nmny  and  rare  volumes  of  Journals  of  Scien- 
tific Societies,  magazines,  reports  of  expeditions,  beside  special 
works  ;  for  which  reason  students  find  the  literature  of  the  Dia- 
toms very  difficult  and  costly  to  obtain.  In  the  present  volume 
is  collected  the  cream  of  what  has  been  already  written  on  the 
subject,  as  well  as  the  figures  of  all  known  North  American 
species  together  with  the  most  approved  system  of  classification. 

I  follow  the  example  of  Dr.  Adolph  Schmidt  in  his  AUaa  der 
Biatomacean  Kunde  in  letting  the  figures  suffice  for  a  description 
of  the  species.  The  Conspectus  of  the  Families  and  Genera  of 
the  Diatomacete  in  this  work,  is  that  of  Prof;  H.  L.  Smith,  of 
Hobart  College,  Geneva,  N.  Y.,  originally  published  in  The  Lena, 
January,  1872,  and  which  Dr.  H.  Van  Heurck  has  also  adopted 
in  his  Synopsis  der  Diatomees  de  Belgique,  a  few  subdivisions  of 
genera  being  added. 

I  gratefully  acknowledged  the  very  valuable  assistance  freely 
extended  to  me  by  that  veteran  authority.  Prof.  H.  L.  Smith,  to 
whom  I  submitted  the  plates  of  this  work  prior  to  their  being 
photolithographed,  I  am  also  greatly  indebted  to  Dr.  H.  H. 
Chase,  of  Michigan,  through  personal  correspondence  and  his 
invaluable  catalogue  of  the  Diatomaceae  of  the  world.  Nor  can 
I  omit  to  mention  Prof.  J.  D.  Cox,  of  Cincinnati,  Ohio,  B.  N. 
Thomas,  of  Chicago,  or  Kain,  of  Philadelphia,  Pa.,  all  willing 
friends  in  time  of  need. 


1 


BIBLIOGRAPHY, 


OH 


ABUBEVIATIONS  OF  NAMES  OF  AUTHORS  AND  THEIR  WORKS  CON- 
SULTED IN  PREPARING  THIS  PONOGRAPH. 


A.  J.  M.— American  Journal  of  Microscopy,  N.  Y.,  1876-1880. 

A.  Q.  J.  M.— American  Quarterly  Journal  of  Microscopy,  N.  Y.,  1878-1879. 
Bail.  Sound. — Microscopic  Examination  of  Soundings  made  by  U.  S.  Atlantic 

Coaet  Survey,  J.  W.  Bailey,  Washington,  1851. 
Bail.  N.  Sp. — Notes  on  New  Species  of  Microscopic  Organisms,  J.  W.  Bailey, 

M.  D,  Washington,  1854. 
Bail.  M.  O. — Micro-observations  in  South  Carolina,  Georgia  and  Florida,  J.  W. 

Bailey,  Washington,  1850. 
Bail,  and  Harv. — U.  S.  Exploring  Expedition,  1838,  1842,  under  command  of 

Ch.  Wilkes,  Philadelphia,  1862  (1874). 

B.  J.  N.  H.— Boston  Journal  of  Natural  History. 

Bbeb.  Alo.  Fal. — Algues  des  environs  de  Falaise,  par  M.  M.  de  Breb.  et  Oodey, 

1855, 
CasxAAcane  1873-1876.— Exploring  voyage  of  Challenger. 
Cleve.  N.  L.  K.  D  — On  some  New  and  Little  Known,  D.  R.  8.  A.,  1881, 
DoNKiN.  B.  D.— Natural  History  of  British  Diatoms,  London,  1870. 
Edwards. — Sketch  of  Natural  History  of  Diatomacese,  Concord,  N.  H.,  1874. 
E.  Abh. — Ehrenberg  in  Abhandlungen  der  Konig.  Academie  der  Wissenschaften 

zu  Berlin,  1830,  etc. 
E.  Bbr.— Ehrenberg  in  Monats  Berichten  der  K.  A.  der  Wis.  zn  Berlin, 

E.  Inf. — Die  Infusions-Thierchen,  von  G,  C.  Ehrenberg,  Leipsic,  1833. 

E.  MiK. — Mikrogeologie  von  Ehrenberg,  1856. 

GiRARD. — Des  Diats.  fossils  par  J  Girard,  Paris,  1867. 
Etudes  Sur  Guano  Comptes  rends,  1868. 

Gregory  W. — New  forms  of  Diatomacese,  British  Association  Reports,  1856. 

Grev.  Cal. — Description  of  New  Species  and  Varieties  of  Naviculae,  etc.,  ob- 
served in  California,  Guano ;  R.  K.  Greville,  Edinburgh.  New  Phil. 
Journal,  1859. 

Grun.  1860. — Ueber  neue  oder  ungeniigend  gekannte  Algen,  von  M.  Grunow, 
Veih.  K.  K.  Zool.  Bot.  Gesell.  in  Wien,  1860. 


▼m 


niATOMAOK.I-;  OF    NORTH    AMKKKJA. 


!f 


Heiii.— Con8[)ei'tUB  Criticus  Diatomacciirum,  per  F.  A.  IleilKtrg,  ('o|>enliagen. 

1862. 
Jan.  Ouan. — Ziir  Characterintic  den  GuanoH  Abh'd.  der  iSi-hleiwh  (JeBcl.  von  C. 

.laniHch,  HreHlaii,  1861,  1862. 
Jan.  and  Kail— lleber  Meeres  Diatomeen  v«n  HonduraH,  vonC.  Janinoh  and  Dr. 

L.  Kal>enlinrHt,  18()2. 
J.  ti.  C— Jour,  of  the  Ciuekett  Mic.  Cliil),  London,  1868. 
KiTTON.— (F.)  Dintu'  of  Norfolk  TranH.  N.  II.  S..  of  Norwich.  1875. 
K.  R.— Die  KipHi'lMcimliner  Raiiilarien.     F.  T.  KUt/.inu  Nordhaiisen,  1844. 
Lkns.— The  LeiiM,  a  (i.iarterly  .Journal  of  Mic,  Cliicauo,  1872,  187.3. 
Lkwis,  N.  and  I.  Forms — On  Home  new  and  Hinnuliir  lntcrm«>diate  ForniH  of 

DiatH'  hy  F.  VV.  Lewis,  I'roc.  IMiila.  Acad.  Nat   Sciences,  18«:{. 
Lkwh,  N.  and  R.  Sp.  -Notes  on  new  and  rare  H\).  of  Dialie  from  the  V.  S.  Sea 

Hoard,  F.  W    Lewis,  I'hila.,  18(11. 
Lewis,  W.,  M.D — On  extreme  and  exceptional  variations  of  Dialu'  in  White 

Moinitains,  F.  W    Lewis,  IMiilndelphia  .Academy  of  .'Science,  ISS-'i. 
M.D.— Microftrapliic  Diciioniiry,  (iriflith  1''.  llenfrey,  Londcm,  1875. 
M.  J. — Quarterly  Journiil  of  Microscopic  Science,  London. 
M.  M.  J.--Monlhly  Microscopic  .Journui,  London,  1869. 
NiTZ. — Beitra^  zur  Infusorienkunde,  von  Dr.  C.  L.  Nitzsch  Halle,  1819. 
O.  M.  L  D. — Repoit  on  the  Irish  Diatie  by  Rev.  Eug.  O'Meary.     Proc.  Royal 

Irish  Academy.     Vol.  2,  1^76. 
Petit,  Liste.— Lisle  des  diatomees,  etc  ,  environs  de  Paris,  Bot.  <le  France,  Paris, 

1877. 
Rab.  S.  D. — Siiswasser  Diatm,  Dr.  L.  Rabenhorst,  Leipsic,  1853. 
R.  M.  8. — Journal  Woyal  Microscopic  Society,  London,  1841-1880. 
Scum.  At.— Atlas  der  Diatomaceen-Kunde,  von  Adam  Schmidt.     Plates  1-140. 

Ascherleben,  1874-1890. 
Schuman,  T.— Beitra^e  zur  Nat.  Diatomeen,  Wien,  1869. 
Sill.  Joub. — American  Journal  of  Science  and  Art,  New  Haven. 
S.  B.  D.- Synopsis  of  the  British  Diata'  by  the  Rev.  Wm.  Smith,  London,  1853. 
Sm.  Sp.  T.— Species  Diatomacearum  Typical  Studies,  H.  L.  Smith,  Geneva,  N.  Y. 
Tor.  B.  Club  — Torry  Botanical  Club,  Bulletin,  New  York. 
T.  M.  8  — Transactions  of  the  Royal  Microscopic  Society.  London. 
V.  H.— Synopsis  des  Diatomesde  Belgique,  Dr.  Henri  von  Heurck,  1884. 
W.  and  C — Notes  on  new  and  rare  species.  Walker  and  Chase,  Series  1. 


I 


INTRODUCTION. 


TnK  DiatoniaceiL'  comprlst'  an  onhn-  of  iiiicroscopif  Al^u-  re- 
markable tor  their  HiliceouH  (q)i«l('rin  and  tlieii-  siii;^iilar  beauty. 
The  Hi  lex  of  their  epiUerinal  eoveriiij;  reiulerH  ail  tluur  forms, 
exeeptinj;  a  few  whieh  afl'eet  Itraekisli  waters,  indestructible  by 
the  ordinary  ajjeiufy  «>f  decomposition.  They  belong  to  both 
salt  and  fresh  waters,  though  tlu^  deni/ens  of  the  one  are  not  to 
be  found  in  the  other.  The  marine  fonus  abound  in  the  sea 
depths,  in  marslnvs  which  are  tlooded  at  high  tide,  in  shallow 
inlets  and  the  muddy  bottoms  underlying  the  sandy  surface  of 
the  seashore.  The  fresli  water  foiins  are  plentiful  on  the  mossy 
stones  of  mountain  stn^amlets,  pools  bordering  rivulets,  drip- 
ping ro(!k8,  in  ponds,  creeks  and  rivers ;  every  sluggish  stream 
has  a  bed  of  them  of  more  or  less  thickness. 

Owing  to  tlieir  indestructible  covering,  vast  quantities  of 
Diatoms  have  formed  fossiliferous  deposits  in  many  States  of 
the  Union,  notably  Virginia.  The  city  of  Kichmoud  it  built 
upon  such  a  deposit  from  twenty  to  eighty  feet  thick  and  several 
miles  in  extent ;  the  Church  Hill  tunnel  was  cut  through  it  three 
<£uarter8  of  a  mile. 

The  siliceous  epiderm  although  characteristic  of  the  Diato- 
maceo),  is  not  without  exceptions ;  in  a  few  it  is  wholly  want- 
ing ;  others  develop  it  irregularly  from  almost  nothing  to  nearly 
perfect  silicitication. 

All  living  Diatoms  possess  a  gelatinous  envelope,  which, 
owing  to  its  transparency,  can  be  readily  detected  only  by 
means  of  coloring  matter  added  to  the  surrounding  fluid  ;  it  is 
secreted  by  the  Diatom  and  is  necessary  to  its  existence ;  some- 
times it  forms  tulies  or  stalks  or  stipes  which  have  misled 
observers  into  basing  genera  upon  them  ;  nevertheless  these  are 
features  which  should  not  be  ignored. 

The  ends  of  these  tubes,  stalks  or  stipes  attach  themselves  to 
stones,  wood,  and  other  adjacent  objects  to  prevent  the  Diatom 
from  being  swept  away  by  currents  and  waves.  When  the  Dia- 
tom is  about  to  propagate,  the  frustule  is  often  immersed  in 
large  masses  of  this  transparent  gelatinus  envelope. 


i 


X  DIATOMAOEiE  OF  NORTH  AMEKICA. 

STRUCTURE  OF  DIATOMS. 

In  the  pill- box-like  siliceous  structure  of  Diatoms,  the  top 
and  bottom  constitute  the  'dives;  the  sides  are  known  as  the 
connecting  membranes  or  situral  zones  and  when  detached  are 
tcmed  hoi,j>s;  in  some,  the  valves  do  not  fold  over  but  merely 
rest  against  each  other  edge  on  edge.  The  line  of  junction 
forms  a  suture,  raph^  or  median  line  along  which  the  valves 
readily  separate.  H.  L.  Smith  divides  Diatoms  into  three  groups 
according  tc  the  presence  or  absence  of  this  suture,  viz.,  Raph- 
idie£e,  Pseudo-Raphidieje  and  Crypto  Raphi die®.  The  first  has 
a  distinctly  true  raph6  or  median  line  which  usually  has  median 
and  terminal  enlargements  or  nodules ;  the  second  has  no  raph6 
but  a  pseudo-median  line  without  nodules  or  enlargements  ;  in 
both  of  these  groups,  the  valves  are  much  longer  in  the  direc- 
tion of  the  raph6  or  pseudo-raph^  and  therefore  are  more  or  less 
bacillar.  The  third  group  has  the  raph6  concealed  and  the 
pseudo-raph6  absent,  the  valves  circular,  often  angular  and 
sometimes  broadly  elliptical. 

The  raph6  is  a  true  cleft  which  in  the  first  group  divides  the 
valves  equally  and  is  supposed  to  be  the  means  by  which  the 
contents  of  the  frustule  communicate  with  the  outer  world.  In 
one  or  the  other  of  these  three  groups,  all  known  forms  of  the 
Diatom  may  be  included. 

Besides  the  simple  frustule  and  envelopes,  diatoms  often  pre- 
sent hairs,  horns  or  bristles  which  are  usually  siliceous.  They 
are  most  abundant  on  group  three,  less  so  on  group  two  and  ae 
rarely  found  in  group  one.  They  are  mostly  marginal  or  sub- 
margiral,  and  are  sufficiently  persistent  to  have  led  to  the  nam- 
ing of  genera  and  species  in  accordance  with  their  presence  or 
absence. 

The  mere  adherence  of  the  frustules  gives  rise  to  what  are 
termed  filamentous  forms ;  thus,  in  group  I  we  have  Diadesmis,  a 
genus  founded  alone  on  this  characteristic ;  FragUaria  in  group 
II  is  but  an  association  of  Si/n^drw  in  the  form  of  a  straight 
filament,  and  in  group  III  Melosira  is  a  straight  filament  of 
frustules  no  way  different  from  OyclotUla  or  even  Coscinodiscm 
except  n  cohering  more  or  less  firmly  after  the  self  division  of 
the  frustules. 

The  typical  forms  of  the  tihree  groups  are  regular  in  outline ; 
thus,  a  Navieula  from  group  I  is  in  sideview  (the  valve)  moie 
or  less  inflated  and  rectangular  in  front ;  the  side  view  in 
Synedra  of  group  II,  presents  straight,  parallel  margins,  the  ends 
drawn  more  or  less  together ;  in  the  front  view,  however,  the 


INTRODUCTION. 


XI 


margins  are  straight  to  the  ends ;  the  side  view  of  the  Chadno- 
diaeiia  in  group  III  is  circular  and  the  front  view  rectangular. 
Though  these  serve  as  types,  yet  each  group  has  many  excep- 
tional forms;  thus  the  sides  of  OymbeUa  appear  more  or  less 
swollen  in  a  front  view,  while  the  side  view  shows  one  valve 
more  swollen  than  the  other.  The  frustules  of  Oomphonema 
are  cuneate  on  side  view  and  more  or  less  irregularly  swollen 
in  front  view.  The  frustules  of  Meridion  and  Bhipidophera  are 
also  cuneate  in  a  greater  or  less  degree. 

The  absence  of  the  raph6  or  median  line  from  one  of  the 
valves,  is  another  departure  from  the  normal  form  in  group  I. 
The  frustule  is  then  curved  with  the  raph6  and  central  nodule, 
on  the  concave  side  (valve)  a&  in  Achnanthea,  Aehnanthidium 
and  Cocconei8.  The  obliteration,  partial  or  entire,  of  the  central 
nodule  as  in  Stauroneis,  is  another  variation  in  group  I.  In 
pome  of  the  Naviculese  the  median  line  is  more  or  less  sigmoid 
not  straight ;  of  these,  Grunow  made  the  genus  Scoliopleura; 
also,  the  Pleurosigma  differ  from  the  Naviculese  in  the  sigmoid 
median  line  as  well  as  in  the  sigmoid  sides  of  the  frustules. 

As  a  general  rule,  free  forms  belong  to  group  I,  the  fiat  fila- 
mentous to  group  II,  the  cylindrical  and  most  of  the  irregular 
forms  to  group  III. 

CONTENTS  OF  DIATOMS. 

The  colored  internal  portions  of  a  Diatom  are  for  the  same 
genus,  usually  arranged  in  the  same  manner.  Any  departure 
therefrom,  is  accompanied  by  differences  in  the  build  of  the 
frustule ;  for  which  reason,  microscopists  have  been  disposed 
to  classify  Diatoms  agreeably  to  the  arrangement  of  the  endo- 
chrome  ;  which,  however,  has  nothing  to  commend  it  especially 
as  regards  the  immense  masses  of  fossil  Diatoms  which  can  be 
described  only  by  their  frustules. 

The  contents  of  the  Diatom  are  enclosed  in  a  membrane  that 
is  firmly  attached  to  the  frustule,  and  possesses  a  higher  vitality 
than  the  external  membrane  ;  for  when  the  contents  thrust  the 
halves  of  the  frustule  apart,  the  internal  membrane  elaborates 
the  silex  for  the  inside  edge  of  the  sutural  zone  and  the  zones  for 
the  new  valves. 

Within  the  membranous  sac  is  a  dimly  colored  band  more  or 
less  granular,  attached  to  the  inner  surface  of  the  internal  mem- 
brane directly  beneath  the  valves  and  along  the  zones ;  it  is 
contractile  and  apparently  serves  to  hold  the  valves  together 
besides  equally  dividing  the  contents  of  the  Diatom,  by  means 
of  extremely  thin    membranous   walls   which    issue   from   it. 


Xll 


DIATOMAOE^.  OF  NOKTH   AMKKIOA. 


Possibly  this  structure  pertains  to  all  diatoms,  though  it  can  be 
detected  only  in  the  larger  specimens. 

MOVEMENTS  OF   DIATOMS. 

These  have  excited  the  curiosity  of  all  observers  and  given 
rise  to  a  belief  with  many,  that  tb.e  Diatom  belongs  to  the  animal 
rather  than  to  the  vegetable  world ;  but  though  the  latter 
opinion  now  prevails,  y^.t  the  cause  of  the  movement  of  Diatoms 
has  not  thus  far  been  satisfactorily  accounted  for  even  by  those 
who  have,  like  H.  L.  Smith,  devoted  much  attention  to  the  sub- 
ject. This  gentleman  at  the  tenth  annual  meeting  of  the  Amer- 
ican Society  of  Microscopists  presented  '^4  Contiibvtion  to  the 
Life  History  of  the  Diatomaeew^^  in  which  he  says  :  "I  am  dis- 
posed to  consider"  (for  reasons  he  had  previously  stated  at 
length)  "that  the  motion  of  the  Navicular  is  due  to  injection  and 
expulsion  of  water  and  that  these  currents  are  caused  by  different 
tension  of  the"  (internal)  "membranous  sac  in  the  two  halves 
of  the  frustule.  In  those  Diatoms  which  do  not  have  the  central 
band  thus  binding  the  frustules,  as  for  example,  the  SynedriP, 
the  Fragilariw  and  the  circular  and  angular  forms,  no  motion  is 
to  be  observed,  or  at  best  but  a  slight  trembling,  as  in  this  case, 
the  tension  is  more  nearly  uniform  over  the  whole  surface  of  the 
internal  sac."  More  recently,  Mr.  Cornelius  Onderdonk  in  The 
Microscope  for  August,  1890,  ascribes  the  movements  of  Diatoms 
to  "a  thin  fluid  mass  in  rhythmical  motion "  which  covers  the 
surface  of  the  Diatom.  "We  cannot  conceive  that  the  fluid  has 
power  to  drive  itself,  for  it  is  unfoinitid  material.  What  then 
remains  except  that  the  motive  force  is  on  the  walls  of  the 
cell  .  .  . 


)> 


BEPROPUCTION  OF  DIATOMS. 

Diatoms  reproduce  themselves  by  three  methods  of  conjuga- 
tion. 

Ist.  By  two  frustules  uniting  their  undifferentiated  endo- 
chrome,  thereby  producing  a  single  sporangium  about  double 
the  size  of  the  parent  frustules,  which  finally  develops  into  a  frus- 
tule with  ends  more  rounded  than  the  parent  fru.stules  and  the 
valves  not  so  wedge-shaped.  Suris^Vn  splendhla  is  a  good  ex{i,m- 
ple  of  this  method,  see  plate  I. 

2d.  By  two  frustules  uniting  their  differentiated  endochrome 
and  producing  two  sporangial  cells ;  sometimes  one  of  these 
proves  abortive,  but  that  has  no  influence  on  the  growth-  and 
development  of  the  other.  NavictUa  amphirhynclus  is  propagated 
in  this  manner. 


INTRODUCTION. 


Xlll 


3d.  By  the  diiferentiated  contents  of  a  single  frustule  produc- 
ing one  sporangium,  the  most  common  mode  of  propagation  as 
well  as  the  lowest  in  the  scale,  as  in  the  free  form,  Oymbella 
cuspidala. 

Besides  reproduction  by  conjugation  there  is  multiplication 
by  division,  and  as  diatoms  do  not  grow  these  divisions  tend  to 
make  the  resultant  diatomw  smaller  and  smaller  until  some 
become  so  minute  as  in  the  Nitzachice,  Naviculw  and  Amphorce, 
that  while  living  they  can  go  through  the  pores  of  filtering 
paper ;  a  single  frustule  by  constant  division  and  subdivision  of 
its  progeny,  would  give  rise  in  twenty-five  repetitions  of  this 
process,  to  more  than  thirty  million  individuals,  did  they  all 
survive. 

As  regards  the  longevity  of  diatoms,  it  may  be  said  that  dried 
specimens  can  not  be  revived,  but  they  have  been  known  to  sur- 
vive nearly  a  quarter  of  a  century  in  their  natural  element 
even  though  kept  for  long  periods  in  the  dark,  and  at  times 
frozen  in  solid  ice.  Their  siliceous  covering  is  almost  indestruc- 
tible, resisting  the  strongest  acids  and  passing  unscathed  through 
very  high  degrees  of  heat. 

There  are  very  few  microscopic  objects  of  more  interest  than 
the  Diatom  or  which  return  more  ample  rewards  to  the  patient, 
enthusiastic  student. 


CONSPECTUS  OF  THE  FAMILIES  AND  GENERA 


OF  THE 


DIATOMACE^ 

SYNOPTICALLY  ARRANGED  BY  PROF.  H.  L.  SMITH 
IN  "THE  LENS,"  FOR  JANUARY  1872. 


CLASS  CEYPTOGAMIA. 
Sub-class  ALG^.    Natural  Order  DIATOMACB^. 

[8.  V. — /Side  View;  f.  v. — J^ront  View,] 

Plant  a  Frustules  (siliceous  box),  bivalve,  pseudo- unicellular, 
and  with  an  external,  more  or  less  apparent,  gelatinous  en- 
velope, and  an  internal  investing  membrane,  with  endochrome. 
Gemmiparous  increase  by  Self-Division.   Eeproduction  by 

CON.JUaATION. 

Tribe  I.    RAPHIDIE^. 

a  distinct  raph6  and 
nodules  on  one  or  both 
valves ;  cent  ral  nodule 
rarely  wanting  or  ob- 
scure; valves  simple 
or  complex ;  raph4 
generally  prominent 
in  s.  v.,  occasionally 
in  f.  v.,  especially 
when  constricted,  with 
nodules  at  the  con- 
strictions ; 
f  teeth,  spines,  awns,  or 
1     processes. 


-.Iways  with 


-I 


Frust  ules 
mostly  bacillar 
in  8.  V. ;  some- 
times broadly 
oval : 


without 


^' 


-■>!'>t«"' 


16 


DliTOMACEiE  OF  NORTH  AMERICA. 


Tribe  II.     PSEUDO-RAPHIDIEiE. 


P  RUSTULES 

generally  bacil- 
larins.v.  some- 
times broadly 
ovai ;  or  subor- 
bicular  — very 
rarely  orbicu- 
lar. Frustiiles 
with  or  without 
nodules ; 


always  with  either  ■ 


r 


processes, 
teeth, 
spines, .  . 

without ^  ^-wnS' 

or  true 

rapht' 

on  the 

valves ; 

never angular  las. 

r  hyaline. 


a  pseudo-raph^'  (simple 

lire  or  blank  space) 

on  one  or  both  valves  ; 

or 

longitudinal    septa)    or 

vittJB  in  f.  v.,  or 
valves  fusiform, sigmoid, 

beaked,  or  alate,  or 
with  numerous  trans- 
verse ribs,  plicae,  cos- 
tae,  striae,  or  rows  of 
granules  on  one  or 
both  valves,  rarely 
regularly  radial ;  cos- 
tae  sometimes  show- 
ing in  f.  V. 

except  spines 
very  rarely 
among  the 
Surirelleee, 
or  Tabella- 
riece,  when 
the  charac- 
ter is  al- 
ready suffi- 
ciently in- 
dicated by 
the  above. 


rarely 


unstriate,  or 

much  developed  in  f.  v., 

unless  longitudinally 

septate. 


I 


CONHPKCTUS  OF  TIIK   FAMILIEK   AND  (lEXERA. 


17 


TuilJK  III.    CRYPTO-IlAPHIDIEiE. 


or 


P  K  U  8  T  U  L  E  H 

gtMierally  cir- 
eurlsir,  sub-cir- 
culai'orangulai' 
in  8.  v.,  more 
rarely  elliptical 
oval,  or  bacil 
lar. 


either 


never 


much  developed  in  f.  v., 
and  filamentous ;  or 

with  processes,  teeth, 
spines,  or  awns  ;  or 

more  or  less  hyaline  or 
irregular ;  or 

transversely  septate  (or 
costate)  in  f.  v. 

without  a  central  linear 
blank  space  or  true 
raph^',  on  the  valves, 
except  a  raph6  or 
pseudo- raphe  in  Ka- 
i-hidodiscus. 

v,  microscope  May, 
1889,  p.  ^35. 


m- 


ANALYSIS  OF  THE   FAItfiLIES. 

Trihe  I.     RAPIIIDIILE. 

IjOttered  flj^iires  refer  to  FiiiiiilioH  named  in  Inst  pumKiitpli  of  each  section. 
F'lain  timin'.s  refer  to  the  eorreHponding  mnnberson  tiie  loft  of  each  section. 


j  Frustules  with  valves  alike 

(  Frustules  with  valves  unlike 

(  Valves  cuneate 

■  (  Valves  not  cuneate 

Valves  symmetrically  divided  by  the  raphe 

Valves  not  so  divided 

I  Valves  alate,  or  obliquely  striate 


'A 


3 


) 


Valves  not  as  above,  more  or  less  arcuate  or  cymbi- 

.  form 

f  Valves  with  central  nodule  equally  distant  from  ends. 

*  (  Valves  not  as  above 

(  Valves  with  central  nodule  obscure  or  wanting 

^*(  Valves  not  as  above 


<  Valves  with  central  nodule  unequally  distant  from 

6,-;       ends 

(  Valves  not  as  above 


2 
1 

8C 
7 
4 
3 

8A 
8B 

5 
8B 

6 

8C 

7 


[  Frustules  genuflexed,  nodule  or  stauros  on  one  valve, 
;      usually  on  the  concave  margin  (at  the  constric- 

\       tion),  valves  rarely  broadly  oval 8D 

l^  All  others,  valves  generally  broadly  oval,  rarely  bent       8E 


18 


DIATOMACE^  OF  NOKTH  AMEBIOA. 


r   A   CYMBELLEiE 

Ib. Navicule^ 

8.-^  c  gomphoneme^. 

I    D    AciINANTHEiE... 

I  E    COCCONIDE^ 


(I.) 
(11.) 

(III.) 

(IV.) 
(V.) 


Tribe  II.    PSEUDO-llAPHIDIEiE. 

f  Frustnles  compound ;  really  or  apparently  longitudi- 
J      nally  septate  or  vittate  ;  septae  or  vittae  showing 

j      distinctly  in  f.  v 1 

[  Prustules  not  as  above,  or  only  seen  in  s.  v 2 

J  Arcuate  in  f.  v.  (apparently  septate!),  valves  alike, 
or  differing  only  by  a  pseudo-nodule -at  ends  of 
concave  valve 9A 

[  All  others .' 9B 

1  Valves  circular,  sub-circular,  very  broadly  oval,  or 
differently  costate 3 

Valves  not  as  above 4 

f  Valves  mostly  hyaline,  with  a  few  pervious  costae 
-  j      (scalariform),  or  arcuate  f.  v.,  with  valves  difter- 

■  I      ently  costate,  really  septate  in  f.  v 9B 

[  All  others 90 

r  Valves  fusiform,  sigmoid,  or  beaked,  or  one  margin 

4.  •]      more  strongly  marked  than  the  other 9C 

V  Valvet*  not  as  above 5 

i  Valves  transversely  undulate  (undulations  conspicu- 

5.  }      ous  in  f.  v.),  with  transverse  shaded  bands 9C 

(  Valves  not  as  above <i 

r  Frustules  in  f.  v.  with  beaded  margins  (especially 

]      on  one  side),  not  ends  of  costae ;  or  carinate,  or 

^.      alate 

[  Frustules  not  as  above 

f  Valves  pervious  or  dimidiate,  costate  or  striate,  or 
j      transversely  or  irregularly  dotted  (not  carinate  or 

1      alate) 

[  Valves  not  as  above 

{Frustules  with  a  row  of  marginal  sub-capitate  pro- 
cesses, or  alate,  or  carinate 9C 
Frustules  not  as  above.... 9A 

A. Fragilakie-e...      (VI.) 

B.. Tabellarie^  ..    (VII.) 

C Surirelle^..  ..  (VIII.) 


9C 

7 


9A 

8 


rONSPEOTITR  OF  THE   FAMILIES    AND  GENERA. 


1» 


1 

2 


9A 
9B 


3 
4 


9B 
90 

90 
5 

90 
H 


90 

7 


9A 

8 


1.-^ 


2.^ 


«.<! 


10.^ 


TuiHR  III.    CIlYPTO-RAPHIDIKyK. 

Frustules  cylindrical,  or  flattened,  valves  alike  (ter- 
minated by  a  calyptia) ;  pointed  with  a  bristle IHA 

Frustules  not  as  above 1 

Frustules  with  valves  unlike,  or  mostly  smooth  ;  and 
furnished  with  awns,  horns  (elongated  processes), 
spines,  or  setae,  which  are  sometimes  absent  or 
imperfect  in  fossil  forms ;  frequently  imperfectly 
siliceous,  valve  not  ribbed  radically,  or  cellulose...     IHA 

Frustules  not  as  above 2 

Frustules  imperfectly  siliceous,  connecting  zone 
more  or  less  turgid ;  connected  in  distant  series ; 

.      valve  angular,  with  long  central  spine 18A 

t  Frustules  not  as  above —  .3 

(  Valves  with  a  single  pseudo-nodule 18G 

1  Valves  not  as  above 4 

I  Valves  lunate,  not  transversely  costate,  or  septate...     18G 
1  Valves  not  as  above 5 

!  Valves   somewhat  hispid ;    with   sinuato-reticulate 
lines  (not  rayed) 18G 
-  Valves  not  as  above 6 

(  Valves  circular  or  angular,  not  much  developed  in 
;      f.  v.,  with  (obscurely)  reticulate  center,  and.  con- 

•      spicuous,  pore-like  punctae 18G 

(  Valves  not  as  above 7 

f  Valves  alike,  smooth  (hyaline),  with  radiating  lines 
.'      (linear  rays  not  terminating  in  a  spine) ;  rays  defi- 

j       nite(few) 18F 

{  Valves  not  as  above 8 

f  Frustules  cuneate  in  f.  v.,  or  with  decided  ocelli, 
processes,  or  tubercles,  generally  few  and  promi- 
nent in  f.  v.  (not  spines  alone) 11 

1^  Frustules  not  as  above 9 

Frustules  cohering ;  generally  much  developed  in 
f.  v.,  and  cylindrical ;  firmly  siliceous ;  valves 
rarely  hyaline,  unlike,  or  elliptical ;  without  me- 
dian line ;  sometimes  apiculate,  or  conical,  or  with 
a  peculiar  central  nodule  (spine) ;  radiate  punc- 
tate, or  cellulate ;  and  frequently  with  marginal 
or  sub-marginal  spines.  Frustules  cohering  by 
smooth  sutural  lines,   or  by  marginal  spines  or 

teeth,  or  by  a  central  spine 18B 

I  Frustules  and  valves  not  as  above 12 


20 


T)IAT()MACE.K  OF   NoIlTH    AMKUKA. 


II 
10 


11. 


ISF 
ir> 

ISF 
Ui 


I   Fiiistuh'8  tniiiNvorwIy  H<'])tate,  or  costato ;  cunoato, 

!».         aiigiiliir,  or  sub  ;iii},'ular 

'  FniHtuh's  not  as  ahovr 

I   Frustult's  not  lauch  «lev('lo|H'<l  in  f,  v.,  (Thm'),  rarely 

aii}i:iilar,  ncitliur  luiiat«' nor  ruii«uito ISD 

A.11  otlicrs,   (ilaincntons,  {generally  much   <lev<^lo|MMl 

(       in  (.  V '. IHC 

Valve  (li8c  more  or  less  undulate,  divi(le«l  into  regn 
lar    compart m<'ntH,    usually    alternate    li^ht    and 
12.  ■{      dark:    mostly    with    maifjinal    or    sub  marfjinal 

Hl)ines  01- teeth ISF 

Valves  not  as  abovt;  \''i 

Valves  hyaline,  with  umbilical  lines IHF 

Valves  not  Jis  abovt^ H 

Valves  with   dclinite,  iric^ular,  llexuose,  or  bifui- 
cate  rays  ;  not  hispid,  nor  with  ma'"j;inal  spines.. 

Valves  not  as  above 

Valves  hyaline,  rays  delinite,  not  reaching  margin.. 

Valves  not  as  above 

Valves  with  spsithulate,  cordate,  or  deltoid  rays,  their 

Ixises  frequently  forming  a  hyaline  central  an^a ISF 

Valves  not  SIS  above 17 

Valves  with  large  marginal   hyaline  si)aces,  which 

are  neither  (drcular  nor  hexagonal 18F 

(.  All  others IMC, 

A CHyETOCKKE.K (IX.) 

B Mklosire.k (X.) 

C BlDDULPHIKJ'; (XI.) 

18.  i  D EuPODi«cE.ii (XII.) 

E Heliopelte.e  (XMI.) 

F As TEKOLAMPKEvE.    (XVI.) 

G CoSCINODISCEyl-: (XV.) 

ANALY8I8  OF  THE  GENERA. 
Names  of  tlic  (jicnora  prlntwl  in  ItiilU-s  nrc  not  Norlli  .\inurl('nn. 

Tkiuk  1.    RAPHIDIE^E. 
Family  I.    CvMnELLEyR. 

Frustules  sometimes  complex ;  frequently  hyaline, 
or  inflated  or  constricted  in  f.  v.  ;  with  central 
nodules  approximate,  and  touching  the  connecting 
zone ;  median  line  often  inflexed.  Valves  fre- 
quently with  a  transverse  line  (stauros) ;  "con- 
necting membrane"  often  longitudinally  striate  or 
punctate Amphora  i. 

Frustules  not  as  above 1 


i;{. 
14 

ir> 

Hi. 
17. 


(•oNNpP/TtfR  OF  TtfK  PAMIT,iF>»   AND  (IKVKUA. 


21 


FruHtiilcH  HJinplc,  arcuiit*'  in  s.  v.,   linear  in  f.  v., 

laplM'  and  ('(Mitral  ikhIiiIc!  niai'^^iual  in  s.  v.,  valve 

1    !       sonu^tiincH  intlatcd  in  tli(^  center  of  ventral  margin 

CKItATONKIH  ir. 
All  others,  raplx'-  freiinently  eurv(!(l Cywhki.la  hi. 

KAMIIiV     II.      NAVrcULK.K. 

1   KruHtnles  conipoiind, — valves  with  locnii  (marginal 

(H'lls) MAHT0(JI,()IA   IV. 

'  Frustiiles  not  as  above 1 

Frnstnles  coniponnd  ((nich  valve  with  two  plates); 
one   (superior)   with   transverse    ribs,   the    other 

(inferior)  striate,  with  raphi*' and  noduhis 

Stictodehmis  v. 

l  Frustules  not  as  above 2 

I  Valves  with  a  conspi(!nons,  transverse  smooth  sili- 

2.         eeous  band  (stanros)  not  alate Stauuonfjs  vi. 

'   V'llves  n()t  SIS  above 3 

(  Valves  sigmoid,  or  areuate ;  or  frustules  alate,  or 

3.-]      raphe  indexed  or  rellexed 5 

V  Valves  and  frustuU^s  not  as  above 4 

I   Valves  with  a  central  nodule Navicula  vri. 

4      Valves  without  eential  nodule  (or  obscure) 

'                                                                                  AMI'IIII'LEURA  viii, 
[  Valves  symnu^trically  divided  by  the  raplu'* ;    frus- 
j.   ;       tules  not  alate,  rarely  constricted  in  f.  V 

'*'  \  PlKUROHIOMA  IX. 

{  Valves  or  frustules  nor  as  above G 

f   Valves   not  symmetrically  divided    by  the   raph^', 
I      which  is  arcuate,  ends  retlexed,  and  marginal 

a  A  TOXONIDIA  X. 

All  others,  alate,  usually  constricted  in  f.  v 

L      .  Amphiprora  XI. 


\ 


>  Family  III.    Gomphoneme.t;. 

Frustules  curved  in  f.  v.,  nodule  on  concave  valve... 

RHOIKOSPIIENIA  XII. 

(  All  others Gomphonema  xiii. 

Family  IV.    Aciixanthk.e. 
Free  or  stipitate A(;hnantii E8  x iv. 

FAMIIiY    V.      C;(X'0()NI1)K.K. 

(  Valves  with  marginal  cells Orthoruns  w. 

\  Valves  not  as  above 1 


DIATOMACK.*:  OF  NOHTlI   AMKKUA. 


S 


ValvPR  not  Rvmmotricjilly  dividod  by  tho  raphd. 


I. -J  AnorthnH  \\l. 

I  Allothui-g COCJCONKIH  XVII. 


1 


f 


1. 


*>  ■ 


M 


4.<! 


5.-^ 


6.^ 


TlUHK  II.     PHKlTlK>.UAPiriI)IK,1-',. 

FAMIIiV    VI.      FRAOIIiAHIK.K. 

FruHtules  arcuate  in  f.  v.,  valv(w  with  inttM'rupt<'(l 
tranHV(M-so  Htriao  oi-  costjve  ;  and  one  or  both  valvoH 

with  pseudo-nodulcH  (blank  HpaceN)  at  the  endH 

Okphyria  xviii. 

Prustules  and  valves  not  as  above I 

F'rustule^  more  or  less  arcuate  in  s.  v.,  with  trans- 
voi-se  (often  granulate'  ribs  vcanaliculi  W.  <S.) ; 
which  in  f.  v.  fre<|uently  cause  the  margin  or  sub- 
margin  to  appear  beaded,  or  dentate Kpitiikmia  xd:. 

Frustules  not  as  above 2 

Frustules  arcuate  in  s.  v.  ;  not  ribbed  ;  valves  trans- 
versely striate,  without  median  line  or  nodule,  and 
with  pseudo-nodules  at  the  ends,  on  <ioncave  mar- 
gin      EUNOTIA  XX. 

Frustules  not  a«  above 3 

Valves  with  a  pseudo-raphfi,  and  transverse  rows  of 
granules  within  square  cells  (clathrate);  central 

and  terminal  nodules  distinct Glyphodesmih  xxi. 

"Valves  not  as  above 4 

Valves  cruciform ;  with  interrupted  transverse  striae 
(not   clathrate),    central    nodule    very    distinct. 

Frustules  in  f.  v.,  with  terminal  vittae? 

Omphalopsis  xxii. 

Valves  not  as  above 5 

Valves  with  central  and  terminal  nodules  (or  blank 
spaces),  latter  prominent  in  f.  v.  ;  and  pseudo- 
median  line  (not  always  distinct) ;  valves  fre- 
quently constricted  or  inflated  at  the    middle ; 

frustules  cohering Diadesmis  xxiii. 

Valves  not  as  above <J 

Valves  with  a  central  (generally  transverse)  blank 
space,  and  a  central  pseudo-ocellus :  or  with  two 
or  more  (few)  strong  pervious  costae  in  the  middle, 
which  are  prominent  in  f.  v.  ;  and  transverse 
(generally  moniliform  interrupted)  striae  or  costae, 

or  square  cellules ;  and  terminal  nodules 

Plagiooramma  xxiv. 
Valves  not  as  above 7 


(!()NHPK< TIIH  OF  TJIK    l-AM I I.IKH   AND  (JKNIKA. 


%\ 


[. 


H. 


I 


9. 


lOo 


11.^ 


12  < 


13  i 


( 

15.  <! 


FnistiileH  cohering;  qiuulmiiKular  in  f.  v.,  valveH 
without  cRutrul  nodule ;  Htriac  interrupted  by  a 
a  Hmooth  nu>dian  line  or  a  blank  Hpace  ;  valveH  in- 
Hated  or  vunBtrit^ted  ;  terminal  n<»duleH  present, 
and  jfenerally  prominent  in  f.  v....Dimkhegkamma  xxv. 

PruMtules  not  aH  above 8 

FruHtules  with  a  serrated  suture ;  valves  without  a 
median  line,  and  with  transverst)  eonspicuous  rows 

of  pores  or  dots., Terebraria  xxvi. 

Frustules  not  as  above tt 

Frnstules  in  f.  v.  narrow,  linear;  valves  lanceolate 
or  iiiHated ;  with  eonspicuous  monilitbrm  (j^ener- 
ally  somewhat  radiate),  transverse  striae;  and  a 
median  line  or  black  space  (tre<iuently  obscure  or 

wanting);  nodules  absent Kaphoneih  xxvii. 

Frustules  not  as  above 10 

Frustutes  sessile,  solitary,  or  in  twos,  elongated, 
linear  ;  slightly  cuneate  ;  valve  finely  striate,  con- 
stricted at  one  end,  ami  without  median  line 

Peronia  xxviii. 

Frustules  not  jus  above... 11 

Frjistules  linear  in  f.  v.  ;  somewhat  hyaline,  and  en- 
larged at  one  end ;  valves  striate,  without  median 
line  or  nodule ;  cuneate,  and  constricted  at  one 
end  ;  united  in  a  stellate  or  zigzag  manner 

ASTERIONELLA  XXIX. 

Frustules  not  lus  above 12 

Frustules  much  elongated ;  valves  with  a  smooth 
median  line  or  blank  space,  sometimes  obscure ; 
frequently  a  central  pseudo-nodule ;  transvereely 
striate,  never  costate  ;  sometimes  slightly  cuneate, 
or  bent,  sessile,  filamentous,  or  attached  end  to 

end ..Synedra  xxx. 

Frustules  not  as  above 13 

Frustules  very  much  elongated,  straight  or  undulate; 
valves  inflated  at  the  middle,  slender  (awn-like), 
somewhat  irregularly  punctate  in  s.  v.,  without 

median  line,  or  nodules Toxarium  xxxi. 

Frustules  not  as  above 14 

Frustules  cuneate  ;  margin  smooth  ;  valves  hyaline, 
or  finely  striate,  with  a  median  line 

LlOMOPHORA  XXXIII. 

Frustules  not  as  above 16 


1/ 

i  I 
i 


m 


i 


'i 


I 


24 


14. 


16.^ 


17. 


J 


DIATOMACEiE  OF   NdliTH   AMERICA. 

Valves  finely  striate,  punctate,  or  more  or  less  hya- 
line ;  never  costate  ;  median  line  wanting;  or  ob- 
scure :  frustules  narrow  in  f.  v.,  sometimes  inflated 
(undulato  arcuate  i  oi"  constricted ;  margins  smooth, 
cohiuing,   forming  a  straight,  sometimes  >zigzag, 

filament Fragilaria  xxxii. 

Valves  and  frustules  not  as  above 15 

Frustules  cuneate ;  valves  tiansversely  costate  or 
distinctly  granular  striate,  with  a  median  line 

PODOOVSTIS  XXXIY. 

Frustules  not  lus  above... 17 

Frustules  compound  ;  valves  costate  or  ribbed  ;  ends 
of  costae  ])roniinent,  sub  marginal  and  capitate  in 

f.  v.;  frustules  not  cuneate  Dentkula  xxxv. 

All  others ;  valves  costate ;  linear,  or  cuneate  in 
f.  \ . ;  (?oh(iriug ;  filament  zigzag,  curved,  or  straight 

DiATOMA  XXXVI 

Family  VII.    Tauellarie.'E. 

FrustuUiS  linear,  or  cuneate,  and  in  f.  v.,  with  monil- 
iform  vittae  (ends  of  -costae) ;  valves  divided  into 
chambers  by  transver.se  ribs  (scalariform  i;  outer 
valve  finely  pervious  striate,  without  median  line. 

Climaoosphenia  xxxvii. 

Frustules  not  as  above. I 

F'ustules  curved  in  f.  v.;  valves  costate;  dissim- 
ilar; septae  rudimentary Entopyla  \xx\ii\. 

Frustules  not  as  above 2 

Fiustules  in  f.  v.  with  straight  vittae,  which  are 
usually  alternate  ;  cohering,  forming  a  zigzag  fila- 


2. "!       ment ;  valves  transversely  striate,  and  inllated  at 


4.-1 


r 

I 

I 
I 


center  and  ends Tarellaria  xxxix. 

Frustules  not  as  above 8 

Frustules  with  straight  vittae,  in  pairs,  and  inter- 
rupted at  the  ends  and  center  in  f.  v Diafomella  xi,. 

Frustules  not  as  above 4 

Frustules  with  vittae  in  pairs,  which  are  straight  or 
undulate  in  f.  v.  ;  not  interrupted  or  enlarged  at 

the  ends  ;  cohering,  forming  a  zigzag  filament 

Grammatophora  xli. 

Frustules  not  as  above T) 

Frustules  filamentous ;  vittae  in  f.  v.  somewhat  en- 
larged at  the  ends  ( clavate) ;  valves  pervious  cos- 
tate ;  costae  few,  showing  in  f.  v Gompliogramma  xlii. 

Frustules  not  as  above 6 


bONat»ECTtTS  OF  TttE  FAMILIES  AN^ft  GENERA. 


26 


f>.-{ 


7. 


8. 


\ 


9  A 


Valves  without  previous  ci-^tae,  quite  smooth,  oj' 
very  finely  striate ;  often  with  fine  median  line ; 
frustules  hyaline  in  f.  v 7 

Valves  and  frustules  not  above 9 

Frustules  with  spines  (bristles)  at  the  angles  in  f.  v. 

Atthcya  xliii. 

Frustules  without  spines 8 

Septae  (or  vittae)  in  f.  v.,  interrupted,  alternate 

Tessella  xliv» 

Septae  not  interrupted Striatella  xlv . 

Frustules  compound ;  valves  with  a  median  line,  and 
gener?ally  blanic  ends ;  costate  or  striate.  Septae 
in  f.  V.  connected  by  transverse  striae  (latticed) ; 

frustules  cohering,  forming  a  flat  filament 

Ehabdonema  XLVt. 

Valves  mostly  hyaline,  with  a  few  pervious  costae 
(scalariform) ;  linear,  orbicular,  or  inflated 

BiBLARIUM  XLVII. 


1. 


2.^ 


3.-! 


4.i 


PAMTIiY    VIII.      SURTRELT-E^.. 

Frustules  compound  ;  valves  broadly  oval,  unlike  ; 
one  costate,  the  other  sieve-like  (cribrose),  punc- 
tate ;  without  nodules Campyloneis  xlviii. 

Frustules  not  as  above 1 

Valves  transversely  undulate,  undulations  conspicu- 
ous in  f.  V.  ;   striate,  and  with  a  few  transverse 

shaded  bands Cymatopleura  xijx. 

Valves  not  as  above.... 2 

Frustules  in  f.  v.  showing  a  marginal  row  of  short 
sub-capitate  processes  ;  valves  transversely  costate 

Cscalariform) Glavularia  i.. 

Frustules  not  as  above... 3 

Frustules  bent  in  s.  v.,  margins  finely  dotted,  valves 
striate,  without  median  line,  and  with  an  unequally 
notched  inflation  at  one  end ;  cohering  in  a  stel- 
late manner Actinella  li. 

Frustules  not  as  above... 4 

Frustules  linear  in  f.  v.  ;  arcuate,  with  rounded  ends 
in  8.  V.  ;  margins  punctate ;  valves  finely  striate, 
without  median  line,  terminal  nodules  on  the  con- 
cave margin.  Frustules  cohering  in  a  zigzag  man- 
ner, or  in  tables Bemwgonivm  lii. 

Frustules  not  as  above 5 


26 


1)1  ATOM ACK^-:  OP  NORTH   AMERICA. 


6.i 


'  Fnistules  (inooiispicuously)  alate ;  valves  elliptical 
or  linear ;  not  cuneate ;  parallel  (dimidiate,  mar- 
ginal, or  wavy)  r^^riate ;  rarely  costate ;  median 
line,  if  present,  simple,  and  not  beaded  or  con- 
spicuonsly  marked  ;  valves  sometimes  bent  along 

the  longer  axis  (apparently) Tnjhlioiiella  1.111. 

Frustnles  not  as  above H 

Frustnles  alate  (sometimes  inconspicnously) ;  valv<'s 
cuneate,  lenifoim.  oval,  or  subcircular ;  rarely 
linear,  frequenMy  twisted  ;  with  simple  median  line, 
or  more  or  less  linear  blank  space ;  center  sometimes 
blank,  or  finely  dotted  ;  margins  or  sub  margins 
strongly  maiked  1  somewhat  radiate   ;    costate  or 

plicate    canaliculate,  W.  S.). Surtrklla  i,iv. 

All  oiiiers  usually,  finely  striate),  linear,  constricted, 
iniiated,  sigmoid,  beaked,  fusiform  or  carinate ; 
free,  adherent,  or  in  tubes Nitzschia  lv. 


1. 


2.^ 


4.^ 


Tkihk   III.    ("RYPTO-RAPHlI>IE/E. 
Family  IX.    ('H.KrocEHKyK. 

Frustnles  annnlat;^ ;  cohering  ;  elongate  ;  ends  alike, 
calyptriform  ;  tipped  with  a  spine  or  mucro  ;  often 
imperfectly  siliceous Rhizosolenia  lvi. 

Frnstules  not  as  above 1 

Frustnles  with  horns  (elongated  processes ;  not 
spines  simply )  ;  valves  frequently  unlike...  2 

Frustnles  with  spines  or  bristles ;  or  awns ;  or  smooth.3 

Frustnles  compressed,  the  sutural  portion  narrow  ; 
horns  fre(|uently  branching  or  bifurcate ;  some- 
times mucronate ;  valves  and  horns  sometimes 
with  short  scattere<l  spines  ;  horns  sometimes  ob- 
tuse, short  (mammae' Dicladia  Lvir. 

Frusjules  elongated  ;  horns  mucronate ;  valves  dis 
similar ;   generally  one  horn  (or  process  i  or  one 
valve,  two  on  the  other Synngydium  i,viiT. 

Spines  on  one  valve  only ;  fre(|ucntly  long,  and 
sometimes  branching Syndendrium  lix. 

Frustnles  not  as  above 4 

Valves  angular  ;  spine  central ;  sutural  j)ortion  more 
or  less  turgid  (imperfectly  siliceous) ;  valves  with 
a  radiate  series  of  doi)8 ;  frustnles  connected  in  a 
distant  series Ditylum  lx. 

Valves  not  as  above r) 


CONSPECTUS  OF  THE   FAMILIES  AND  GENERA. 


27 


r>-l 


1-; 


;iS 


'  Spines  (setae?)   marginal;   on  both  valves;  valves 

dissimilar,  mostly  hyaline Hkr<^otheca  i<xi. 

All  others,  valves  l'rec|uently  awned  ;  or  with  minute 
scattered  spines  ;  or  dissimilar  ;  hyaline,  or  im- 
perfectly siliceous  ;  or  frustules  compound  ;  awns 
often  absent  in  fossil  forms;  leaving  valves  en- 
tirely smooth Cn.'F/rocERos  i.xn. 

l^'  A  Mil  N    X .      M  K I ,( )S  1 1 1 K  .1-:. 

r  Frustules  apiculate  (tlrawn  out  at  the  extremities  or 

I      margins  to  a  point) 1 

(.  Frustules  not  as  above 2 

f  Frustules   cylindrical  ;    apicuhite  in    f.    v.  ;    valves 

unlike Pyxilia  i.xiii. 

Frustules  not  cylindrical  ;  apiculate  in  s.  v.  ;  valves 

alike Feponia  lx  i v. 

Valves  witli  a  central  spine,  or  coronal  or  scattered 
spines ;    not   ribbed ;    frustules   cohering   by   the 

spines.  Stephanopyxiss  lxv. 

t  Valves  and  frustules  not  as  above 8 

(  Frustules  cylindrical ;  with  somewhat  large  regular 
marginal  teeth,  and  peculiar  central  cUusping  spine. 

Syndetocystis  LXVI. 

Frustules  not  as  above 4 

Valves  elliptical  or  constricted ;  with  marginal  spines 

or  teeth  ;  and  central,  peculiar  nodule 

Rutilaeia  lxvii. 

t  Valves  not  as  above 5 

Frustules  cylindrical ;  ends  constricted  and  finally 

expanded  into  a  connecting  nodule 

Strangulonema  Lxviii. 

[  Frustules  not  as  above 6 

f  Frustules  cylindrical ;  with  a  border  of  much  elon- 
gated cells  at  Junction  of  margins  in  f.  v 

Skeletonema  LXix. 

[  Frustules  not  as  above 7 

(   Valves  circular ;  with  curved  marginal   rays,   and 
7.-.       minute  marginal  teeth  ....  I)isoosira=Melosira  lxxii. 

(.  Valves  not  as  above H 

Valves  dissimilar ;  somewhat  conical  or  inflated  in 

f.  V.  ;  with  radiating  lines  or  ribs  ;  not  branching,  t 

nor    bifurcate    at  extremities      apex  truncated ; 

usually  spinous  ;  interspaces  punctate 

Stephanogonia  lxx. 
,  Frustules  not  as  above 9 


.5. 


6. 


8. 


I 

I 


i 


r 


I    !i 


I 


2S 


-I 


1.-1 


2.-1 

i 
I 


3.-^ 


4.S 

I 

I 


2A 


niATOMACEJ?  OF  NOftTH  AMERICA. 

Frustules  inarkiMl  with  spiral  or  crossed  bands  in  f.  v. 

Liparoffyra  LXXl. 
All  others Melosika  lxxii. 

Fa.MM.N     XI.      BlDDlLPHIK.E. 

Frustiiles  with  one  neck-like  process  ;  generally  ob- 
lique ;  coherinfT  i  rrejifularly ,  valves  unlike 

ISTrfMrA  LXXIII. 

Frustules  not  as  above 1 

Frustules  trans\ers(Uy  costate  in  f.  v.  ;  costae  more 
or  less  cai)iiate,  rcscnibKng  music  notes ;  valves 
transversely   (iostate  ;   without  spines  or   median 

line Tekpsinoe  lxxiv. 

Frustules  not  as  above 2 

Fiustuh's  transv<'isely  costate,  or  scalariform  :  costae 
(septae)sliowinj>'  in  f.  v.,  not  capitate,  valves  often 

lunate,  connecting  zone  hyaline  oi  striate 

Anaulus  lxxv. 

Frustules  not  as  above 3 

Frustules  mostly  hyaline,  or  imperfectly  siliceous, 
forming  a  straight  or  curved  filanient ;  processes 

obscure,  or  absent Eucampia  lxx\  i. 

Frustules  not  as  above 4 

Processes  generally  straight  on  the  outer  margin  in 
f.  V.  ;  and  tipperl  with  a  spine  or  nnicro,  which  is 

sometimes  obscure Hemiaulus  i.xxvii. 

All  others Biddulphia  Lxxviii. 

Fa  Ml  I,  V  XII.    ErpoiMscKii-:. 

Valves  with  plumose  rays  or  dots  about  the  flat  mas- 
toid processes  (or  ocelli);   rarely  obscure;  some 
times  with  a  sub-quadrate  central  portion  ;  or  a 
radiant  cellulation  interrupted  by  a  linear  series 
terminating  in  the  ocdli Auliscus  lxxix. 

Valves  not  as  above I 

Valves  circular  or  oval ;  with  the  ocelli,  or  pseudo- 
openings,  in  compartments Craspedoponis  lxxxi. 

Valves  discoid  with  a  central  thickening  or  obscure 
nodule,  and  an  interrupted  raphe  terminated  by 
minute  spines  or  spiniform  nodules  somewhat 
within  the  margin  of  the  disc ;  central  portion  of 
the  disc  naviculoid,  depressed,  its  ends  terminating 
at  the  spines.  Striae  radiate  moniliform,  extending 
from  rapW'  to  the  margin  of  the  valve... Uapkidodis(ius. 

Valves  not  as  above 3 


rONHPKCTlJS  OF  THE  FAMILIES   AND  (iKNERA. 


29 


1, 


8. 


Valves  with  <lecido<l  ribs,  rays,  or  furrows,  connect- 
ing the  (usually  large)  processes  or  tubercles 

AULACODISCUS  LXXX. 

Val  Vi'S  not  as  above 2 

Valves  circular ;  with  a  radiating  series  of  minute 
punctae,  and  marginal  tubercles Ferithyra  i.xx  xi i. 

Marginal  tubercles  smaller,  valves  radiate-grauulate, 
circular  or  oval Cespodiscuh  lxxxii'. 

All  others,  ocelli  (tubercles,  or  processes)  generally 
quite  large,  and  few,  usually  sub  marginal ;  cel- 
lules or  granules,  rarely  ladial,  or  minute 

EUPODISCUS  LX XXIII. 


Family  XIII.    IlELioPKLTKii*:. 

r  Valves  with  marginal  spines  obsolete  ;  or  if  present, 
;       few,  and  in  alternate  compartments 

^  AOTINOPTYCHUS  LXXXIV. 

Valves  not  as  above 1 

Valves  with  a  hyaline  (stellate)  umbilicus,  with  mar- 
ginal spines  or  teeth,  connected  by  a  radial  rib 

Ualionyx  lxxxv. 
Valves  with  numeious  marginal  spines  or  teeth  ;  and 
a  hyaliije  umbilicus ;  often  hyaline  spaces  at  the 

base  (angles)  of  each  compartment 

Hkliopelta  i,xxxvi. 


Family  XIV.    Astkuolami'im;,!-',. 

{  Valves  hyaline,  angular  or  circular ;  with  straight 
J       rays  or  ribs  not  expanded  at  margin  oi-  center,  and 

j       not  reaching  the  margin Liostkpiiania  lxxxvii. 

(  Valves  not  sus  above 1 

Disc  radiate-punctate,  cellulate  or  granulate ;  with 
several  well-defii\ed  linear  blank  spaces  !  ribs  ,  from 
the  margin  inwards  ;  center  granulate,  not  stellate. 

ACTINODISC'US  LXXXVIII. 

Valves  not  as  above 2 

{  Valves  inflated,  hyaline,  or  punctate,  center  some- 
I       times  stellate  ;  rays  linear;  more  or  less  bifurcat 

2.  '       ing,  and  somewhat  irregular ;   interspaces  blank, 

I       or  with  curved  or  sinuose  lines..(!LAi)OGRAMMA  lxxxix. 

,    I.  Valves  not  as  above 3 


%   i\ 


;  i 


'11^  n 


30 


3. 


I 


2  - 


f 


I 


5.^ 

t 

I 
I 


DIATOMAOE^  OF   NORTH   AMERICA. 

Valves  hyaline;  with  a  broad  margin  divided  by 
simple  rays ;  center  hyaline,  or  granulate,  reticu- 
late, or  minutely  punctate Mastogonia  xc. 

All  others Asterolampra  xci. 

Family  XV.    (^oscinodisck/t:. 
Disc  with  a  circle  of  large  marginal  or  intra-mar- 
ginal  cellules  ;  and  radiate,  or  scattered  cellules  or 

punctae Heteiodictyon  xoii. 

Valves  not  Jis  above 1 

Disc  with  an  interior  ling  of  cellules  separating  the 
center  from  the  broad  marginal  lim  ;  cellulation 

of  center,  curved  or  spiral P '•  igMicellia  xviii. 

Valves  not  as  above 2 

Disc  very  convex,  or  conical  in  f.  v.  ;  with  a  con- 
spicuous, central  pseudo-opening Porodiscus  xciv. 

Valves  not  as  above ,'{ 

Disc  cellulose  ;  large,  with  a  broad  border  of  a  differ- 
ent stru(^ture,  separated  by  a  well  defined  margin. 

(^KASPEDODISUUS  XCV. 

Valves  not  as  above 4 

Disc  hyaline;  with  distinct  umbilicus,  and  (very) 
finely  mark^'d  ;  with  rayed  or  decussating  lines,... 

HYALODISt'US  XCVI. 

Probably  otleji  valves  of  Podosika— Melosira  lxxii. 

Valves  not  as  above 5 

Disc  cellulose;  with  a  narrow  (somewhat  dentate) 
rim;  connecting  zone  cellulose 

ENDK'TVAr-MEhOHIKA   l,XXII. 

Valves  riot  as  above  (J 

Disc  without  marginal  spines,  teeth,  or  pseudo- 
nodule  ;  usually  of  small  or  medium  si/t;  :  and 
generally  with  an  outer  ring-like  portion  either 
smooth  or  striate;  center  often  bullate,  smooth,  or 
granulate;  granulas  equal,  scattered,  or  rayed,  or 
disc  hyalin*'  or  finely  punctate ),  with  strong  linear 

straight  rays Cycji.otella  xovii. 

Valves  not  as  above 7 

Fiustules  complex?  disc  circular,  gen«!rally  with  a 
marginal  oi-  submarginal  pseudo-nodule  (sometimes 
absent)  ;  fre<pu'ntly  with  minute  marginal  spines 
or  teeth  ;  and  with  a  single  or  double  series  of 
radiating  dots  or  punctate  often  subulate  ( ' )  blank 

spaces AcTrNocYCLUH  xcviii. 

Frustules  not  as  above 8 


CON8PELTUH  OK  THE   FAMILIKS   AND  <tENKKA. 


31 


M 


Frustules  cuneate  in  f.  v.,  lunate  in  s.  v.. 


9 


9. 


10. 


11. 


12.^ 


13. 


14 


15 


1«. 


Frustules  not  as  above 11 

ValvesceIlulo.se,  center  b^ank,  niaifijin  veined 

Hemiducus  xcix. 

Valves  not  as  above 10 

Valves  with  indistinct  umbili<'us,  finely  punctate 
with  radiating  lines,  doisal  and  ventral  nnirf^ins 

with  minute  teeth  or  .spines Falmeria  c. 

All  others,  dorsal  margin  without  spines,  ventral  fre 

(|uently  with  small  p.seudo  nodule EUODIA  oi. 

Disc  with  a  radiating  seri«^s  of  small,  e(|ual  or  sub- 
e(|ual  granules ;  aiul  gencirally  with  a  granular 
umbilicus  or  center;    marginal    teeth   or  spines 

rarely  absent Stkphanodiscus  oil 

Valves  not  as  above 12 

Valves  circular;  much  intlated.  Frustules  in  f.  v. 
with  the  longitudinal  axis  much  longer  than  the 
transverse  ;  not  ribbed,  nor  cellulose  ;  sutural  por- 
tion   ("connecting    zone")    narrow;    sometimes 

minute  marginal  teeth. Pyxidh  tla  cm. 

Valves  not  as  above    13 

(  Valves  elliptic,  circular,  or  .stib-angular ;  with  a 
;  prickly  aspect  (hispid) ;  often  with  minute  spines, 
]       and  with  sinuato-reticulate  rays  or  Wnes... .Liradiscm  civ. 

I  Valves  not  as  above 14 

Disc  circular  or  angular  ;  with  conspicuous  punctae  ; 
and  divided  into  more  or  less  plicate  compart- 
ments, often  obscurely,  by  radiating,  often  dicho- 
tomizing, lines  OI-  blank  spaces  ;  center  sometimes 

bullate,  or  more  or  le.ss  distinctly  reticulate 

Stictodiscus  (JV. 

Valves  not  as  above 15 

f  Frustules  compound.  Disc  circular,  with  numerous, 
I  strong,  .straight,  radial  ribs  ;  and  a  hyaline  center ; 
1       ribs  connected  by  concentric  lines,  or  rows  of  gem- 

maceous  granules  without  spine  or  teeth 

Arachnoidiscus  cvi. 

Frustules  not  as  above 16 

Di.sc  with  a  circle  of  well-defined  marginal  or  intra- 
marginal   (subulate)   spines;   cellules  in  parallel 

rows Systephania  cvii. 

(Cellules  not  in  parallel  rows,  valves  of 
Creswellia=Stephanopyxis?  lviii.) 
Valves  not  as  above 17 


w 


■1 


.«   ^ 


i; 


Bi  DiATOMACE^.  OF   NORTH    AMERICA. 

(  Disc  very  convex,  and  strongly  cellulose,   without 

17.         marginal  teeth  or  spines Dictyopyxis  oviii. 

I  Valves  not  as  above 18 

f  Disc  without  rays;   fr(M|uently  hyaline;   and  with 

)       scattered  spine** Xanthiopyxih  cix. 

I  All  others,  without  strong  linear  rays,  or  large  spines 

[      or  teeth Coscinodiscus  ex. 


i: 

I    r 


will. 

CIX. 

fscx. 


INDEX 

TO  NAMES  OF  FOURTEEN  HUNDRED  NORTH  AMERICAN  DIATOMS 

ILLUSTRATED  IN  THIS  WORK  WITH  TWENTY-THREE 

HUNDRED  FIGURES 

[iJoman  numerals  indicate  the  Plates— common  fii/ures,  the  Illustrations  on  eaxh  Plate."] 


ACHNANTHE8. 

arenicola,  xxix,  9. 
brevipes,  xxvii,  29,  30. 
exiles,  ''       25. 

Hudsonia,     "       28. 
longipes,       "       22-24. 
microcephaliim,  xxvii,  27. 
minutissima,  xxix,  10,  11. 
HubHeHsilts,  xxvii,  31-34. 

ACTINKLLA. 

dindesiiiiB?  xxxvii,  9. 

punctata,  "        6-10. 

ACTINISCUS. 

Sirius,  Ixix,  9. 

ACTINOCYCLUS. 

alienus,  Ixxxv,  14. 
crassus,  ciii,  1. 
curvatulus,  xciv,  14. 
Ehrenbergii,  Ixxxv,  9,  12. 
ellipticus,  "       1. 

moniliformiH,  ciii,  5. 
Niagarffi,  "    4. 

Ralfnii,  Ixxxv,  13. 
tenuissimus,  ciii,  6. 
triradiatus,  Ixix,  8. 

ACTINODISCUS. 

Atlanticus,  Ixxviii,  11. 

ACTINOPTYCHCS. 

amblyoceros,  Ixxxv,  5. 
areolatus,  "       4. 

biReptinarium,  cviii,  9. 
Bismarkii,  ciii,  3. 
elegans,  Ixxiv,  14. 
excellens,  xeii,  8. 
glabratus,  Ixxxv,  16,  17,  19. 


ACTINOITYCHUS. 

Griindleri,  Ixxiv,  11 ;  xcii,  3,7. 

heliopelta,  xeii,  1  ;  ciii,  2. 

incertus,  Ixxxv,  8. 

interpunctatus,  Ixxvii,  5,  6. 

irregulare,  cxii,  3. 

laevigatus,  Ixxxv,  10. 

nitidus.  "        6. 

Pfitzeri,  xcii,  2. 

praeter,  Ixxxv,  3. 

pulchelluH,  ciii,  7. 

quinarius,  cviii,  10. 

Raeaniis,  Ixxvii,  7. 

sociuH,  Ixxxv,  2. 

spiniferous,  Ixxxv,  18. 

splendens,  xcii,  9-12. 

HubtiliH,  Ixxxv,  7. 

triangulus.  xcii,  13. 

trigonug,  Ixxxv,  11. 

undiilatus,  Ixxiv,  12;  Ixxviii,  13; 
xcii,  4,  5,  6. 

vulgaris,  Ixxxv,  15,  20. 
Amphicampa. 

? ,  xlviii,  29-31. 

Amphipleuba. 

Lindheimerii,  xxxi,  2. 

maxima,  cxii,  1. 

Oregonica,  xxxi,  1. 

pellucida,      "       3-5. 

Weissflogii,  "       6. 
Amphipboea. 

alata,  ii,  20,  21. 

calumetica,  xlviii,  22-24. 

coDserta,  cvii,  3,  4. 

conspicua,  ii,  16. 


34 


INDEX. 


# 


Amphiproka. 

conHtricta,  ii,  14, 15. 

coBtatu,  cvii,  5. 

diHCiiHxatn,  ii,  19. 

elegaiiH,  v,  3. 

hyalina,  ii,  7,  8. 

lepirloptera,  ii,  <S. 

Lindlieimerii,  ii,  1. 

maxima,  ii,  17,  18. 

nervis,  cvii,  1,  2. 

urnatR,  ii,  12,  l.*);  xiviii,  21. 

paludoHa,  ii,  22,  23. 

piilohra,  ii,  4,  5. 

({iiadrifaiiciata,  ii,  9-11. 

vitrea,  v,  i;i-15. 
Amphitetras. 

antediluvians,  Ixiv,  39. 

elegant*,  '       35. 

mintita,  ''       40. 

ornata,  cviii,  4. 
Amphora. 

affinis,  ix.  13. 

areuata,  ix.  11. 

areolata,  iv,  15. 

bigibba,  iv,  7,  8. 

bincnieH,  ix,  9. 

cingulata,  iv,  27. 

Clevia,  iv,  21. 

coffeffiformiH,  iv,  11, 19, 20 ;  ix,  1. 

contracta,  ix,  21. 

costata,       "      3. 

crassa,  iv,  36,  37. 

cymbiffera,  iv,  10,  17,  18. 

Delphinea,  iv,  23,  24. 

dubia,  iv,  25,  26. 

egregia,  iii,  20,  21 ;  iv,  1. 

£ulen8teinii,  iv,  22. 

excisa,  iii,  4. 

ezsecta,  iii,  15. 

farcimen,  iv,  2. 

flexuoea,  ix,  10;  cxii,  12. 

formosa,  iv,  33,  34. 

fusca,  ix,  7. 

gibba,  ix,  18. 

gigantea,  ix,  20. 

gigas,  V,  4. 

granulala,  iii,  6 ;  iv,  35. 

Grevilliana,  iv,  28. 

Griindlerii,  iv,  38,  39. 

hyalina,  ix,  2. 

inflate,  iv,  12,  13. 


Amphora. 

laeviHHima,  ix,  4;  iv,  3-6. 

lanceolatii,  iv,  16;  x^xi,  II. 

larviH,  iii,  22. 

libyca,  iii,  14;  iv,  14. 

lineata,  ix,  5,  15-17. 

Mexicana,  iii,  24,  25. 

micans,  i"',  26. 

micrumata    xxxi,  14. 

Nova-Caledonica,  ix,  12. 

obtecta,  iii,  16,  2S;  ix,  6. 

obtusa,  iii,  29,  30. 

ovaliH,  iv,  29-32. 

pellucida,  iii,  9,  17. 

plicata,  xxii,  25. 

proleuH,  iii,  10,  11 :  ix,  ^9. 

rectangularis,  ix,  14. 

Richardtiana,  iv,  9. 

rimoHa,  iii,  23. 

robiista,  iii,  1-3. 

salina,  ix,  8. 

Schmidtii  iii,  5. 

spectabilis,  iii,  7,  8 

Bulcata,  iii,  28. 

trun'ate,  iii,  27. 

turgida,  iii,  18,  19. 

venete,  iii,  12,  13. 
Anaulub. 

birostratUB,  Ixiv,  12-14. 
Arachnoidiscus. 

Ehrenbergii,  xci,  1-4. 

GrevilleanuB,  "     5. 

Indiciis,  "     6,7,10,11. 

ornatus,  "     8,  9. 

Abtebionella. 

Bleakeleyi,  xlvi,  7. 

formosa,   xxxi,   16;    xlvi,  1,   2, 
4-6,8. 

notata,  xlvi,  3. 

AaTEROLAMPRA. 

Brookii,  xciii,  3. 
BrebisBoniana,  xciii,  7. 
Darwinii,  "     8,  9. 

elegans,  "     11. 

Grevillei,  ixxxi,  5. 
Hiltoniana,  Ixxxi,  1. 
Marylandica,  xciii,  1,  4-6. 
MoronienHis,  Ixxxi,  2. 
Baifsiana,  "      3. 

rotula,  xciii,  10, 
variabiliB,  xciii,  2. 


INDKX. 


36 


Abteromfiialub. 

arHchne,  Ixxxi,  4. 
flabellntUH,  Ixxxi,  (I. 

AULA('01)IH<  UH. 

argUH,  Ixxx,  1 1, 
lironnci,  Ixxxviii,  10. 
circiimdntiiH,  Ixxxviii,  7. 
criix,  "         1. 

dei'driiH,  Ixxv,  2. 
Kinkeri,  Ixxxviii,  II. 
Kittonii,  Ixxxii,  5;    Ixxxviii,  2. 
MiirRHritHceuM,  Ixxxii,  1,  2. 
Molleri.  Ixxv,  1. 
OregoniiH,  Ixxxviii,  4-(>. 
PeterHii,  Ixxxii,  3,  6,  7. 
prnhiiltilis,  Ixxx,  12;  Ixxxviii,  8. 
|)iilcliir,  Ixxi,  1. 
Rof,'eisii,  Ixxx,  10. 
soliittiimiiR,  Ixxxviii,  9. 
sparsiiM,  Ixxxii,  4. 
Tluiinii,  ixxxviii, :(. 

AULISCUS. 

Amerininus,  Ixxx,  !). 
Biddiiiplua,       "      :\  4. 
cnelatiis,  Ixxxix,  (I,  i),  10. 
CarilmciiH,  Ixxx,  7. 
Clevei,  Ixxix,  H,  9,  10, 
confliiens,  Ixxxix,  8,  II. 
Griinowii,  Ixxix,  11, 12. 
Hardiiianinniis,  Ixxix,  1. 
incertus.  Ixxx,  8. 
intestinaliK,  Ixxx,  5. 
JohnHonii,       "      I. 
MacraeanUH,  ixxxix,  2. 
mirabihs,  "       12,  I  a. 

inutabiliH,  cviii,  8. 
Penivianus,  Ixxxix,  4. 
pruinosiis,  Ixxix,  13,  14;  cxi,  5. 
punctatus,      "       2, 3. 
racemosuf,  Ixxxix,  7. 
radiatup,  "        3. 

rectieulatus,  Ixxix,  5,  (1,  7. 
Schmidtii,  Ixxxix,  o. 
sciilptii8,  Ixxxix,  1. 
speciofUH,  Ixxx,  2. 
spinoHUs,  Ixxix,  4,  cxi,  6 
Stockhardtii,  Ixxxix,  14. 
lextilis,  Ixxx,  6. 

Bacillaria. 

paradoxa,  Ixviii,  32, 34. 


Kacteriartrum. 

ciirviitum,  Ixviii,  20. 

fiircatiim,  Ixvii,  I. 

viirianN,        "      2,  3, 4. 
Rkukei.eya 

iiiicanH,  xxxi,  15. 
BlBLARIliM. 

clypeuH,  Ixii,  25,  26. 

ellipticnin,  cxi,  13,  14. 

Htylohibliiini,  xxii,  5,  H. 
BlDDULrHlA. 

an^iilata.  ex,  ti,  7. 

auritit,  xcvi,  9,  10,  11, 

Baileyi,  xcviii,  1,  2,  3. 

Brittoniana,  xcviii,  18,  19. 

Call  torn iciis,  xcvii,  9. 

circiiiiiH,  Ixiv,  1. 

Cookiana,  xcviii,  10. 

decipiruH,       "      6. 6. 

F>lwardHii,  xcvi,  4,  5. 

eleKantiila,  xcviii,  7,  8,  9. 

gigas,  ciii,  11,  12. 

JolinsonianiiH,  xcvii,  6. 

laevis,  xcvii.  1,  2;  ciii,  8-10. 

longicruciw,  xcvi,  6. 

longiHpina,  xcvi,  12. 

Iiinata,  xxii,  29. 

iiiembranacea,  ex,  9,  10. 

MobilienniH,  xcv,  9. 

occidentaliH,  Ixiv,  11. 

ovalis,  xcvii,  8,  10. 

polyinorpbuH,  xcvii,  5, 11. 

I'orpeia,  xcviii,  15,  Ut,  17. 

piilchella,  xcvi,  1,  2,  3. 

quadricornis,  Ixiv,  8,  9. 

reticulata,  xcvi.  13,  14. 

rhombus,  xcv,  7,  10. 

Roperiana,  xcv,  8,  11-13. 

seticulosa,  xcvi,  7,  8. 

suborbicularis,  xcv,  5,  6. 

tenuis,  xcviii,  II,  12. 

trinacria,  xcviii,  13,  14. 

Tuomeyii,  xxii,  1 ;  xcv,  1-4. 

turgidus,  xcvii,  3,  4,  7. 

Weissflogii,  Ixxviii,  3-5,  6. 

Woolmanii,  xcviii,  4. 
Campylodisccs. 

adornatn'e,  Ixxii,  3. 

ambiguus,  Ixxiii,  2. 

Americanus,  Ivi,  7. 

arguB,  Ixx,  5,  6,  7. 


a 


' 


I  I 

I 


11 


«^ 


INDKX. 


<^ 


('AMI'YI,OI>lMrl'd. 

IticoHtutii,  ex,  :i,  4. 
liifiircittiiH,  Ixxii,  'J. 
l>iiniir){iiiiitiiH,  Ixxxiii,  H. 
L'liHtilii,  Ivi,  y. 
cIvpeuH,  Ixxiii,  H. 
roni'innim,  Ixxii,  5,  (f, 
(•(mtiitiiH,  Ixix,  !.'{,  14. 
creiiri'HtriHliis,  Ixxxiii,  i>. 
iTiiiroHUN,  I XX,  1,  2. 
eirli'ttiiiniiH,  Ixxxiii.  7. 
EclieneiH   Ixxiii,  5,  7. 
Khrenhernii,  Ivi,  6. 
UreenleafinniiH,  Ixxxiii,  I. 
(friiiiderii,  '        4. 

hihernifnw,  Ixxi,  2,  H. 
Ildd^sonii,  Ixx,  3. 
Iliiiiiboltii,  Ivi,  I'i;  Ixx,  12, 
iinperiiili)',  Ixxii,  1. 
inteirnediuH,  Ixxxiii,  6. 
latus,  Ivi,  10 
limhiituH,  Ixx,  10,  14. 
initrgiiiiitiiH,  Ixx,  15. 
Mt'xicanim      "     13, 
Miilleri,  Ixxiii,  1. 
noricuH,  Ixxi,  fi,  7. 
paviilus,  Ixx,  8,  9. 
Piialangitim,  Ixxxiii,  14,  15. 
|iiinctiilatii8,        "       5. 
radioHUH,  Ixx,  11. 
Kalfsii,  Ixxii,  4  ;  Ixxxiii,  10. 
rotuia,  Ixxxiii,  11, 
SamoensiH,  Ixx,  4,  16. 
Saucrhec-kii,  Ixxxiii,  12,  13. 
iSchmitltii,  Ixxii,  6. 
Himilans,  Ixxxiii,  16. 
stellatuH,        "       2. 
tabulatus,  Ixxiii,  4. 
triurophans,  ixxxiii,  3. 

Campyloneis. 

argus,  xxxiii,  24,  25. 
Grevillei,  xxxiii,  28,  29,  30. 
regalis,         "        39, 40. 

Ceratonies. 

arcus,  XXX,  24,  25. 

Chaetocebos. 

bacillaria,  Ixiii,  9,  10. 
boreale,  Ixv,  11. 
Californicum,  Ixv,  13. 
distans,  Ixii,  29. 


Chaetockhos. 

didviniiH,  Ixv,  12,  14-16;  Ixxviii, 
16. 

imiirvatii,  Ixv,  9,   10. 

inoniiu*',      "     22. 
CUMA(Ot*I'll.*;NIA. 

olonuata,  xlviii,  32,  33. 

inoniliKt'rn,  xxix,  7,  H, 

COC'IONKIS. 

ntnlilKiiii,  Ixiii,  35,  36. 
.Vnicricanii,  xxxiii,  32. 
IxircMlis,  Ixiii,  18. 
CalifMrnica,  xxxiii,  19,  20. 
toMtatii,  "         9,  10. 

decusMata,        "         31. 
dinipta,  "         15,  l(i. 

elongata,  l\iii,  37. 
liiinica,  xxxiii,  36. 
Keriiinata,  v,  7. 
(Jrevillei,    xxxiii,   8;   xxxiv,  8, 

9,  10. 
iiitcrniptH,  xxxiii,  S, 
lineata,  xxxiii,  6,  7  -,   xxxiv,  4. 
marginata,  xxxiii,  38. 
Mortiionoruiri,  xxxvii,  23. 
nitidu,  xxxiv,  3,  5. 
nitidniaiiH,  xxxiii,  37. 
ohlonga,  "        34. 

Oceanica,        "        35. 
pediculiis,       "        21.27,33. 
pinnularia,     "        41. 
plarentula,     "        17,  18, 
pseudo-marginata,  xxxiii,  1. 
regalis,  v,  11  ;  xxxiv,  6,  7. 
rhonihia,  Ixiii,  19. 
rhonibit'era.  v,  8,  9. 
scutellum,     xxxiii,    12,    13,    14, 

22,  23. 
striata,   xxxiii,  26. 
sulcata,  V,  12. 
Thwaitesii,  xxxiii,  3,  4. 

COCCONEMA. 

asperiim,  xxxiv,  14. 
.fanischii,  vi,  5. 
lanceolata,  "  14-16. 
lanceolatum,  vi,  1-3,11. 
Mexicanupi,    "4. 
parvum,  "  8,  9. 

COLECTONEMA. 

vulgare,  zxii,  28. 


INPRX. 


M7 


CosclNoDlwItM. 

H|ii('iilutiiH,  Ixxxvi,  i);  xciv,  lit. 
itrKiiH,  Ixxxi,  8. 
iirtiiaiiiH,  Ixxxvi,  '2. 
iiMlcr(ini|ilniliiH,  Ixxxvii,  -t. 
liiHtiKiiiatii",  Ixxxvii,  I. 
Iioroiilis,  Ixxxvii,  I. 
('aliloniicii,  cviii,  7. 
ciintniliH,  Ixxxvii,  6;  xi-iv,  12. 
cDcciineiloriniN,  xciv,  4,  6. 
(•(inciiviiH,  xiiv,  ."{, 
CniMHiiH,  Ixxiv,  1  ;  Ixxxvii,  2. 
lit-niiriiis,  cxii,  ti. 
iliiiniiiiii,  Ixxxvii,  'A. 
elcKHiiH,  xciv,  I. 
excuvnIiiH,  xc,  1,2. 
excentriciiN,  xc,  Kt. 
Kloriiliiliis,  xc,  "). 
ii'\K»s,    Ixxxi,  St. 
lK'ti'r()|)()riin,  Ixxxv,  (i;   xc,  12. 
imprcsHiiH,  xc,  St. 
incretiiH,  ex,  1. 
intcrniL'diiis,  Ixxiv,  13. 
U'litoinif,  xc,  tt. 
LewiHiiiniiH,  xciv,  18. 
liiiciitn-,  Ixxxvii,  10. 
lificcntnirn,  Ixxiii,  80. 
niar^Mnuto-lincatiis,  xciv,  1(1. 
nnii^iiiatus,  cxii,  K  ;   xciv,  21. 
iiiarifiniiiatiiH,  xciv,  25,  2(!,  27. 
iiiiiKir,  xciv,  20. 
nitidniiis,  xciv,  10,  l-'>. 
nitidiis,  xciv,  22,  2.S. 
iKMliiiifcr,  xciv,  7. 
N(»ttinjrlianieiisis,  xciv,  24, 
<)ni|ili.ilai)tliiis,  Ixxxvii,  8. 
{latinii,  Ixxiv,  0,  7. 
j)erfiiratiiH,  Ixxxvii,  0. 
|iiiiictattiH,  cviii,  11,  12. 
radiatiis,  Ixxxi,  7  ;  xc,  3. 
railiolatii.s,  xciv,  6. 
radii  >MUH,       "       11. 
roliiistiiH,  Ixxxvii,  ."),  11. 
rolula,  xciv,  17. 
sol,  Ixxiv,  2,  4. 
stcHij!;er,  xciv,  19. 
siilicdiicavus,  Ixxxi,  10. 
siilxx'latus,  xc,  11, 
suhtiles,  xciv,  8,  9. 
siispectus,  Ixxxvii,  7. 
syiunietrieiis  xciv,  2. 


('()H4iN<»IHHrim. 

vdiitiiH,  xc,  7,  8  ;  cxi,  12 
WdodwanliH,  xc,  4. 

C'(IHMI<»!)|SCIIH. 

leiuiix,  Ixxv,  12. 
(HAsi-KiinniHcim. 

(\)Hciii<)iliMciifi,  Ixxxvi,  3,  8. 

clenaiiH,  Ixxvii,  1,  2.  Ixxxvi,  7. 

iHoporiiH,  Ixxiv,  •'>. 

iiiicrddiHciiH,  Ixxiv,  3. 

OcidiH-lridiM.  Ixxxvi,  4. 

rliiitiiliiciiH,  ixxxvi,  5. 
(  Y('L()'ri:M..\ 

anti(|iia,  Ixvi,  18,  19. 

coinptH,   Ixiii,  30,  31  ;  Ixvi,  20, 
21 ;  ex,  5. 

Kiit/.iiiKiann,  Ixvi,  8,  9. 

MtMic^'liiiiiaiia,  Ixvi,  13-1.'>. 

opcrciilata,  "      22-24. 

plivHopIca,  Ixii,  20,  22. 

rotiila,  l-xvi,  10  12. 

striata,    "    16,  17. 
CyMATOI'I  kura. 

an^iilata,  Ix,  16. 

apiculatn,  "  9,  12. 

C'aiiipylddiscus,  Ixxi,  9. 

elliptica,  ix,  ")-7. 

cllipticiim,  cviii,  A,  6. 

Hihornicu,  Ix,  8,  10,  11. 

niiirina,       "    14,  IT). 

sdicii,  "     1-4,  13. 

Cymbeli.a. 

affinis,  vii,  31,  32. 

Americana,  vii,  24. 

ainpliicephala,  vii,  15. 

aiiKlicii,  "    33,  34. 

cistula,  vi,  (5,  7,  12  ;  vii,  2(1,  35. 

curta,  vii,  30. 

cimpidata,  vii,  16,  20. 

Cyml)ifdrmiH,  v,  10 ;  vii,  28. 

Ehrenl)er>i;ii,  vii,  3,  21,  25. 

pxcisa,  "     9,  10. 

Gastroides,      "     4,  5,  12,  13,  23. 

jjriicelis,  "    20 

helvetica,        "     6. 

Hetcropleura,  vii,  1,2. 

Kaiustehatica,  "     11. 

leptoceros,        "     8. 

inaculata,  "     22. 

naviculifdrmis,  vii,  7,  14. 


!t 


In 


i  i] 

n 


i 


I 


parvii 


19. 


38 


INDEX. 


Cymbella. 

rotundati),  cxi,  19. 
Sporangial  growth,  i,  10-12. 
Stodderi,  Ixiii,  34. 
stomataphorn,  vii,  17,  IH. 
turgldula,  "  27. 

ventricosa,  vi,  13. 

CvMliOSIBA. 

Aganlhii,  xxix,  5,  6. 
DlMEBEQRAMMA. 

fossile,  Ixiii,  27. 

fiilvum,  V,  23. 

marinum,  xlv,  4,  5. 

Novffi  Ctesarsea,  v,  16,  22. 
Denticcla. 

antillaria,  Ixiii,  32,  33. 

lauta,  xlvi,  10;  Ixviii,  16,  17. 

thernialis,  xlvi,  9;  Ixviii,  14,  15 

valida,  Ixviii,  9-11. 
DiATOMA, 

anjeps,  xlvi,  11,  17,  18. 

Ehrenbergii,  xlvi,  16,  21,  22. 

eloiigatum,       "    15,  26,  27. 

pectinale,  "     19,20. 

temie,  "    23-2">. 

viilgare,  "     12,  14. 

DiOLADIA. 

capriolus,  Ixiv,  5,  7. 
clathrata,     "     2 
mitra,  "     3,  7. 

DlCTYOCHYA. 

?        xlviii,  25-28. 
DiSCLOPBA. 

Oregonioa,  cxii,  14. 
Discu: 

p orceiaineour.,  Ix.\iv,  17. 

unbenant,  Ixxviii,  15. 
Encyonema 

Auerwaldii,  viii,  21. 

caespitosum    "    20, 

gracile,  "    16,  17. 

paradoxum,    "    23. 

prostratiim,    "    24. 

triangulatum,  viii,  22. 

ventrico,  "    18,  19. 

Entomooasteb. 

Woodwardii,  v,  25. 
Epithemia. 

argus,  XXXV,  14-17  ;  xxxvi,  1-3. 

constricta,  xxxv,  20,  21. 

gibba  "         1-3,  8,  9. 


Epithemia. 

gibbenila,      "        26,  28. 

granulata,     "        4, 5. 

Hyndnianii,  xxxv,  6,  7. 

marina,  xxii,  23,  24. 

musfiilui', xxxv,  19, 18;  Ixviii, 27. 

()(!fllata,  xxxv,  22,  23. 

Horex,  xxxiv,  13  ;  xxxv,  24,  25. 

succinetn,  xxxiv,  12. 

tentrioiihi,  xxxv,  34. 

turgida,  "      10-13. 

vent.ic'osR,  i,  7,  8. 

zebra,  xxiii,  31,  .32;  xxxv,  29-33. 
Eucampia. 

Virginira,  Ixvi,  32. 

ZodiaeiiH,       "     .34,  35. 

ElTNOTIA. 

Americana,  Ixxviii,  12. 
Bactriana,  xxxviii,  1(». 
bicep.s  Ixviii,  23. 
bidentula,  xxxviii,  9. 
cygnus,  xxxvii,  •"). 
decaodon,  xxxvi,  14. 
declives,  xxxvi,  23. 
depressa,  xxxvii,  3. 
diodon,  xxxvi,  5,  6,  21,  22. 
dizyga,  xxxviii,  7. 
formica,      "        20,21. 
gibbosa,       "        S. 
heptodon,  xxiii,  23. 
impresHa,  xxxviii,  22. 
incisa,  "        24. 

Innaris,         "         16-19. 
major,  "         1-4,  14. 

mono(ion,  xxxvi,  4,  12. 
mositf,  xxxviii,  30-32. 
paraliela,  xxxviii,  15. 
pectinalis, xxxvi,  1.5-20;  xxxviiii 

12,  13. 
pentaglypbin,  xxxviii,  29. 
polyglyphiH,  xxxviii,  11. 
polydon,  xxxvii,  1. 
praeriipta,  xxxviii, .'),  6. 
robusta,  xxxvi,  9-13. 
sella,  xxiii,  29. 
serra,  xxxvii,  2. 
serrnlata,  xxxviii,  33,  .34. 
tridcnlnla,  xxxviii,  25,  26. 
triodon,  xxxvi,  7,  8. 
undinaria,  xxxviii,  35. 
zygodon,  '•      27,  28. 


INDEX. 


39 


teuODIA. 

gibba,  Ixviii,  26. 
.Janischii,  cv,  19,  20,  21. 

EUNOTOGRAMMA. 

(lebilis,  Ixxxv,  16. 
laevis,       "       17-19. 

EUI'ODI-CUS. 

ar){us,  Ixxvi,  1,  ?,  4. 
Californicus,  Ixxvi,  7. 
oculatiis,  "       !>. 

rtidiatus,  Ixxvi,  6,  11 ;  Ixxvii,  8. 
RogerKii,      "       S;  cxi,  17. 

Fkaqilaria. 

amphecephala,  xlvii,  21. 

biceps  "      9. 

bi  nodes,  "      8. 

brevJHtriata,  "      IT). 

Californica,  "      22. 

capucina,  "      1-3. 

construeno,  "      1.S,  14,  20. 

Dimeregramnia,  xxxvii,  4. 

entomon,  xlvii,  26. 

Plarrisonii,  xlvii,  12. 

inflexa,  v,  21. 

miitabilis,  xlvii,  IS,  19. 

Newl)eryii,  v,  20. 

Pacifica,  xlvii,  23-25. 

paradoxa,  xlvii,  16,  17. 

paralitica,      "      10. 

Treraontii,  v,  17. 

ttirgens,  xlvii,  11. 

venter,  v,  19. 

verescens,  xlvii,  4-7. 
Gkphvria. 

conatricta,  Ixi,  3. 

gigantea,      "    1,2. 

.Japonica,  xxxiv,  15,  16. 

media,  Ixi,  4,  5. 

GlY1'HODE8MI8. 

difitans,  xlv,  21,  22. 
Williamsonii,  xlv,  2.%  24. 

Gl.YPIIODI8<;US. 

Griinowii,  Ixxvi,  9. 
stellatus,         "      8,  10. 

(ii  MPHONEMA. 

acuiiiinatum,  xxviii,  22-27. 
Americanum,  xxiii,  22,  28. 
augur,  xxviii,  17,  18. 
capitatum,  xxii,  19;   xxvi,  6,  7  ; 
xxviii,  16,  20,  21. 


GoM 

PHONEMA. 

constrictum,  xxvi 

,12-1 

5; 

Kxv.'ii, 

15,  19. 

cristatum,  xxvii. 

3,  11 

dichotomum,  xxvi,  16, 

17 

elegane,  xxvii,  8. 

geminatim,  xxvi. 

i-4, 

10, 

11. 

gracile,  xxvii,  6, 

7. 

intricatum,  xxvi 

,4. 

mainmilla,  xxvi, 

5. 

maximuin,     " 

8,9. 

Mexicanuin,  xxvii,  12 

olevaceum,         " 

14, 

15. 

olor,  xxix,  19. 
Oregonicum,  xxii,  8,  9. 
sarcophagus,  xxvii,   10. 
semipertum,      "      16. 
spheerophorum.f xxvii,  1,  2. 
tenellum,  "      13. 

turgidum,  "      9. 

vibrio,  "      5. 

GONIOTHECIUM. 

didyiuum,  Ixiv,  31. 
monodon,      "      30. 
obtusutn,       "      33. 
odontella,     "      17,  18. 
Rogersii,  xxxiv,  17,  18,  19;  xxv, 
'JO;  Ixiv,  32. 

GBAMMATI  PHOR  A . 

angulnsa,  xiix,  11-13. 

Caribiea,     "      19. 

gibba,  "      6, 7. 

marina,       "     8-10,  H-16. 

maxima,     "      26. 

Mexicana,  "      24,  25. 

serpentina,  xlix,  ],  20-23. 

strictH,  •'      17,  18. 

undulata,  xlix,  3-5. 
Hantzschia. 

Amphioxys,  li,  15-17. 
Heliopelta. 

nitida,  Ixxi,  4. 
i  Hemiaulus 

affiiiis,  Ixiv,  15,  16. 

bifrons,  Ixiv,  26,  28,  29. 

Californicus  Ixiv,  34. 

polycestenorum,  Ixiv,  19,  20,  24, 
25,  27. 

polymorphum,  xxv,  23,  24,  25. 
Hbrcotheca. 

mammiiaris,  Ixiv,  22,  23. 


! 


l.'"'!l 


40 

HnM(R'LAni.\. 

(Mpitutii,  xxix,  lo,  lo. 
tiliformiH,  xxix,  lH-18 
Hyalodictya. 

DiHiiH",  Ixviii,  'M. 

HYAT-OniSOIM. 

laevis,  lix,  2. 
iiiaximuii,  lix,  7,  8. 
reti'ulatup,  ex,  S. 
Stelliger,  lix,  6. 
Hubtiles,      "    'A. 
VVhitneyi  "   5. 
Hydroseba. 

triv;iietrn,  ev,  9-1*2. 

ISTHMIA. 

enervifi,  cix,  6-9. 
nervosa,    "     1-'"). 

LiCMOPHORA. 

('ali)'oinica,  xlvii,  '.V2,  ;{2a. 
flavellnta,    xvix,     1,    2,;     x 

27-29. 
grac'iliH,  xlvii,  30,  31. 
Jiirgensii.    xxix,    12;  xlvii, 

34. 
papeana,  xxii,  26,  27. 
liiicta,  xlvii,  35,  37. 

LlOSTEPHANIA. 

compta,  Ixii,  21. 

LiRADISCUil. 

tninatus,  Ixiii,  14-16. 

LiTHOPESMIUM. 

contraclum,  Ixii,  28. 

MasI'OGLOIA. 

angiilata,  ovii,  10. 

apiculata,  v,  24. 
^  '        eltgans,  cvii,  8. 

exigua,  xxx,  15,  16. 

Orevillei,  xxx,  17,  18. 

Kinsmanii,  xxv,  26,  27 

lanceolata,  xxx,  19, 

Smithii,         "      21,  23. 

Kubmarginata,  evii,  11. 
Mastooonma 

crux,  lix,  1. 

heptagonia,  lix,  9. 

Hexangulata,  Ixii,  18. 
Melosira. 

Americana,  Ivii,  10. 

arenaria,  Iviii,  5-7  ;  cxii,  2. 

Baileyi,  Ixxiv,  9,  10. 

Borreii,  Iviii,  8-11. 


INDEX. 

Melohira. 

davigera,  Iviil,  16. 

erenulata,  Ivii,  16-20. 
I  ... 

orotonensis,  Ivii,  6. 

distans,  Ivii,  30-32,  36. 

granulata,  Ivii,  7-9,  21,  22,  33. 

herologium,  Ixiii,  20,  21. 
I  Huttonia,  ciii,  13. 

i  nummuluides,  Ivii,  1-5, 

j  orichalcea,  Iviii,  17,  18, 

scalarip,  Ivii,  23-25,  28. 

sculpta,     "     34,  35  ;  Iviii,  3,  4. 

sol,  Iviii,  1,  2. 
i  spiralis,  Ivii,  26,  27,  21). 

sulcata,  Iviii,  12-15. 
!  undulata,  cxii,  4,  5. 

varians,  Ivii,  11-15. 
Meridion. 

circnlare,  xxxvii,  24,  25,  27,  28; 
Ivii,  cxi,  15,  16. 

intermedium,  xxxvii,  26,  29,  30. 
Navicula. 
•33,  I  acrosphaenia,  xxi,  8,9,  11. 

I  accuminata,  xvi,  16 ;  xx,  5. 

I  affinis,  xiv,  1,  2. 

I  Americana,  x,  51. 

i  ampliigomphus,  xviii,  10;  xix,  5. 

amphionys,  xxiii,  24,  25. 

amphirhyncus,  xiv,  3, 4 ;  xix,  13, 

amphisb&'na,  xix,  23. 

angeiorum,  xi,  3, 

anglica,  x,  1. 

angusta,  x,  34. 

apiculata,  xiv,  13,  14. 

apis,  xvi,  19. 

approximata,  xvi,  18. 

aspera,  xx,  4. 

Bacilluni,  x,  29,  .^0. 

Baileyana,  xxiv,  3,  4. 

b'inoides,  xvii,  23. 

bioculata,  xii,  13. 

Bleischii,  xviii,  9. 

Boeckii,  xxv,  8,  9. 

Bohemica,  ix,  46. 

Bomboidus,  xii,  17. 

Bombus,  X,  47;  50;  xxiii,  3. 

Borealis,  ix,  23,  24. 

brasiliensis,  xiv,  21, 

Brannii,  Ixviii,  13. 

Brebissonii,  x,  26;  xix,  16-19. 

brevis,  x,  7,  17. 


INDKX.  41 


Navicui.a. 

Californica,  xiv,  17,  24 ;  xvi,  1. 

campylodiscus,  xii,  15, 

earassins,  Ixiv,  20. 

cardinaliH,  X,  45;  xii,  18, 

Caribfea,  xvi,  54. 

carinifera,   "     15, 

Chersonensis,  xv,  19. 

circumsecta,  ix,  27. 

duthensis,  xi,  10;  xvi,  27. 

coarctata,  xv,  'A,  11. 

cocconeii'orinis,  x,  14. 

oolumnaris,  xviii,  1,  6. 

commutata,  xvii,  IS. 

confecta,  xv,  12. 

Comperii,  xvi,  7,  xvii,  2. 

cnstata,  xxiv,  6,  7. 

crabro,  x,  -VA  ;  xv,  7. 

crabnimiforinis,  xv,  9. 

orueiata,  xi,  6. 

cryptocepba'     x,  13. 

oruciformis,  a    iv,  19, 

ciispidata,  xii,  16. 

(^yntbia,  ix,  2'>,  26. 

dactyliiH,  xxi,  1,  2,  3,  4. 

Dariana,  xvii,  6. 

decurrens,  ix,  .?8,  .39 ;  xxv,  .3. 

denta,  xv,  15. 

De  Wittians,  xxii,  18. 

dicephala,  xvii,  21  ;  xx,  22. 

didyma,  xii,  12;  xix,  24,  2^y. 

diffluenH,  xvi,  21 . 

diffusa,       "     11. 

digitus,  xxiv,  1. 

dilatata,  xvii',  5,  7. 

dioniphala,  xxiv,  8. 

diplosticha,  xii,  3. 

dirhynchus,  xi,  18,  19;  xxv,  6. 

dirrhombns,  xii,  14. 

discrepana,  x,  4. 
,  disphenia,  xxiii,  9. 

distenta,  xvi,  10. 

divergens,  xix,  20,  21. 

Division    of    Diatonic,    i     9-13, 

14,  15. 
Donkinii,  xv,  17. 

dubia,  X,  27  ;  xvii,  22. 

dnplioata,  xxiii,  8. 

ele){ans,  ix,  22;  xxiv,  9. 
EiginenHis,  xx,  22. 

elliptica,  xiv,  18,  19. 
4 


Xavicula. 

elonjfatii,  ix,  37. 

entonuin,  xii,  6;   Ixiii,  I. 

esox,  xxiii,  1 4. 

excavata,  xiv,  1"),  27. 

excentrica,  xviii,  2. 

execiita,  xv,  4. 

ex  i  I  is,       40.  ' 

Eugenia,  x,  10. 

eiidonia,  xiv,  (i. 

F'ebegerii,  xi,  8. 

rtrniii,  xix,  9,  10. 

Fiscberi,  xiv,  11.    • 

Kloridana,  xi,  7. 

f()rci|)atii,  xvi,  13,  20 

fortiiicii,  xxiv,  12. 

formosa,  xix.  2,  11. 

fiisca,  xii,  2o. 

fiisidiim.  xxiii,  10. 

fiitiii",  xvii,  8. 

Ki's^tniin,  X,  2. 

geniinH,  xi,  12,  i:>;  xii  8. 

jieinrnata,  x   4(i. 

giblia  XX.  9,  10,  11  ;  Ixviii,  8. 

gil)l)eriila,  x,  .>■"),  38;   xxii,  13. 

(]ri«»l)ilii,  XV,  8. 

gigaw,  xiii,  o. 

globiceps,  ix,  33. 

grHcilis,  X,  22,  23. 

( JreenlaDilica    xi,  o. 

graniilata,  xvii,  14. 

(iriindleri.  cxi,  8,  9 

bemiptera,  xvii,  19,  20;  xx,  0. 

Hennedyi.  xiv,  28,  29,  30. 

bexapla.  xix,  4. 

Hitchcockii.  xix,  30,  31. 

luinierosa,  xvii,  12,  15. 

iinpresHa,  xiv,  2o,  26. 

incomperta,  xxv,  2. 

Indioa,  xvii,  11. 
j  inflata,  xvi,  23;  xix,  29. 

I  inHexa,  x,  25. 

interposita,  xi,  14. 

interriipta,  x,  31,  32;  xii,  4. 

iridis,  xviii,  4. 

irrorata,  xvi,  2,  17. 
i  Isocephala,  xxiii,  6. 

I  Johnsonii,      "       13. 

Kutzingii,  x,  48. 

lacrimanH,  xii,  28;  xv,  1. 

laciinaniiu,  x,  39. 


;! 


i 


42 


INDEX. 


1 

J 


'ft'' 


Navicula. 

lanceolata,  ix,  .32,  42. 

latii,  xxiii,  2(5,  27. 

latLssima,  xvii,  24,  2'"). 

leptostigma,  xxiv,  14. 

Lewisiana,         "    2, 

liber,  xxiii,  5,  !!. 

Ifnearis,  xix.  6. 

littoralis,  x,  11,  12. 

lon^a,  xii.  2.S,  24. 

lyra,  xvi,  G,  9,  14,  26. 

maculata,  xvii,  1  ;  oxi,  1,  2. 

marginata,  xi,  16;  xxiii,  2;cxi,  7. 

raarginiilata,  xi,  10. 

marina,  xiv,  7,  23. 

rneHOKongyla,  xxv,  1. 

niesdlepta,  xx,  '.\  1.3,  14,  16. 

Moesta,  xix,  26. 

Mormonormn,  xix,  7. 

multicostata,  xv,  2. 

muscieforniis,  xii,  7. 

nitescens,  xiv,  8,  22. 

nobilis,  xiii,  2,  4,  6. 

nodosa,  xix,  14. 

nodiilosa,  xxiv,  i(',. 

notabilis,  x,  49. 

nummiilaria,  ix,  40,  43 ;  x,  41, 

42,  44. 
oblonga,  xxi,  10. 
obtusa,  XX,  19,  20. 
oculata,  X,  36. 
Oregoneca,  xi,  lo. 
ornata,  xv,  20. 
oscitans,  xvii,  7. 
palpebrals,  x,  6,  16. 
'  pandiira,  xv,  5. 
papula,  ix,  41. 
parca,  x,  5. 
parniagma,  xvii,  3,  4. 
•        parva,  x,  3. 

Pelagi,  xiv,  16. 
pullioulosa,  ix,  31. 
pennata,  xiv,  9,  10. 
Pensacola,  xi,  9. 
peregrina,  xii,  20,  22. 
permagma,  xi,  2. 
placentula,  ix,  35. 
polysticta,  ix,  28. 
polyonea,xi,17;  xxiv,  13;  lxiii,2. 
Powelii,  xi,  4. 
^praestes,  xix,  28. 


Navk  UI.A. 

j)reslii>|(b(    ;i,  xxiii,  I. 
pretexlii,  xx,  1,  7  ;  cxi,  3. 
|)risi'a.  XV,  6,  13. 
]ir<ilialiilis,  xix    1. 
pniduct:!,       '■    3,  12,  15. 
piu'iia,  XV,  10,  16,  IS. 
piiiiii^M,  xxiv,  IT). 
|iii[tiilii,  xxiii,  19,  20. 
piisilla,  X,  IH,  19. 
pytjiiiii'a,  xvi,  12. 
i|iiiii(|nen(i(iis.  x,  S,  9. 
railiosa,  xxi,  6,  7. 
rectaiiffiiliita,  ix,  36. 
Ht'iiilianltii,  xxiii,  17. 
reiiisii,  xvii,  16,  17. 
rhoinliica,  xx'v,  17,  18. 
rh(>riiiH)i<li's,  xvii,  0.  10;  xxii,  21. 
rliyncoec'piiela,  ix,  34;  x,2l. 
Robert.siana,  xvi,  8. 
.'<iilv.i,  xii,  9. 
saiif^eri,  x,  43. 
ScliiiiidtiHiiH,  xii,  19,  21. 
S(  luiltz-oi,  xxiv,  '). 
Scliiiin;ii)iaiii>,  xxii,  14. 
sciiitillan.s  xvi,  22. 
scdiiopleiira,  xii,  27, 
H<,'iil|)ta,  ix,  44,  4S. 
si'JuiK'ta,  X,  24. 
semen,  xx,  21. 
He|iaral)ilis,  xix,  '17. 
seriini.«,  X. 
serratiila,  xiv,  •"). 
Sniithii,  xii,  11;   xiv,  12;  xx,8. 
si^ina,  xxiv,  10,  11. 
simiians,  xxiii,  4. 
Siilinianornni,  xi,  1;  xxiii,  12. 
singularis,  xx,  2,  18. 
Solaris,  xvii,  6. 
spectabilis,  xvi,  3. 
spluiesophora,  xvii,  13. 
splendida,  xii,  5;  xv,  14. 
Stauntonii,  xxv,  13,  14,  IT), 
staiironeiforni,  xv,  10. 
staiironeis,  xx,  4. 
siibinflatu,  xxii,  11. 
sniiorbiciilaris,  x,  37. 
Hubniula,  xii,  2. 
suspecta,    "     26. 
tabellarin,  x,  28;  r.ii,  1 ;  xx,  12, 
17 ;  xxi,  5. 


HPm 


INDEX. 


4:J 


I 


Navi<ii,a. 

teiiella,  xxii,  1'),  Iti. 

tenuis,  ix,  H'.l,  .SO;  xxiv,  21,  2-2, 

triiKidis  Ixviii,  I'J. 

tninc'iiiii,  xxiii,  I"),  hi.     • 

tiimescans,  xviii,  .S. 

ttiiiiiiliila,  xxiv,  'J.'.i. 

tiis(Uiln,  xxii,  10. 

iiiiileierniinpd,  xiv,  20. 

iindosii,  xxiii,  IS. 

iindiilatii,  xxii,  12, 

vai'iliaiis,  xii,  iO  ;  xix,  22. 

vi'lox.  xxiii,  21. 

vcneta,    "      7. 

viridis,  xiii,  1,  7-10. 

viiidula,  x,  20. 

vnl|iina,  cxi,  10. 

W'.,'isKfl(  „'ii,  xvi.  2i"). 

NlT/CHIA. 

ainpliioiivs,  li,  2U. 
aiiKuIaris,  xliii,  24-2(). 
anjjnstata,  xliv,  18,  lit. 
bililobata,  xliii,  5,  fi,  1.");  cxii,  1.5. 
HrehisHonii,  xlii,  fi,  8. 
<"!irnp(!a('hiana,  xliii,  2,  S. 
circ'iiinsiita,  xliv,  7. 
c'losteriiini,  xl,  10-l.S,  18. 
toairtata,     "     10, 
fomiminis,  xl,  24,  25. 
cnrsoria,  xxii,  17;  xliii,  IS. 
dentifiila,  xliii,  .31-33. 
dissipata,  xlii,  19,  20 
diil)ia,  xliv,  A,  6,  11. 
t'pidiemioidt's,  xliii,  12-14. 
iH-ciculata,  xl,  14-17, 
Kehifterii,  xliii,  1. 
Hiitiiinen.sis,  xliii,  20. 
fnisinliini,  xr."22,  23, 
^ranulata,  xliii,  !  i, 
Hiingaricn,  xliv,  12,  13. 
Kiltonii,  xliii,  .30. 
lanceolata,  xl,  S,  9. 
levideusiff,  xliv,  S. 
limnicola,  xliii,  10. 
linearin,  xlii,  17,  22. 
littorea,  xliii,  16,  17. 
loni^essima,  xl,  2,  3. 
major,  xlii,  4,  f>. 
•     majusciila,  xliii.  111. 
marina,  xliv,  16,  17. 
obtnsa,  xlii,  7,  18. 


Nrrzciii.\. 

palia,  xl,  26,  27. 

paiidiiriformiH,  xliv,  3,  4,  9. 

])aradoxa,  xliii,  27-29 

plana,  xliv,  1,  2, 

>nrniilata,  xliv,  20-22, 

s,  .lari.-i,  xxxiv,  1  ;  xliii,  9. 

sea  libera,  xliii,  1, 

scintelhiiii,  xliv,  24. 

si^ma,  xl,  4-7;  xlii,  10,  11. 

sigi.ioidea,  xlii,  9. 

sinnaiu,  xliii,  21. 

spatlialata,  xliii,  7,  8. 

fipet'tabilis,  xl,  1. 

laliellaria,  xliii,  22,23, 

tenuis,  xl,  19,  20. 

tryl)lii>nella,  xliv,  2;'.. 

valida,  xlii,  1-3. 

veiinicnlaris,  xlii,  12-1."). 

virgaia,  xxv.  Hi,  17. 

vitrea,  xlii,  Ki,  21,  23. 

vivox,  xliv,  14,  1"). 
Odontklla, 

obluHa,  Ixii,  23,  24. 

OnONTIDIUM. 

bvemale,  xlviii,  !),  6. 
1-4, 
7-12. 
1.5-20. 


niesodon,      " 


niiitabilp, 

tabeilaria, 
Odontodiscus. 

siibtiles,  Ixxxiv,  7. 
Pkriitkra. 

lapra,  Ixiv,  3(1. 

c'blamydo[>J ora,  Ixvii,  5. 

tetradadia,  "       17-19. 

Peristki'Hania. 

Baileyi,  Ixxiv,  1-"). 

(Mitycha,  Ixiv,  18. 

Pl.AGKOOnAMMA. 

(^alifornicnm,  xlv,  16,  17. 

(irejiorianimi    "       10,  11. 

obesiim,  "      12-14. 

ornatnin, 

pnlcheiliim, 

pygmacum, 

tessellatiin), 

validiim, 


20. 

1,2,3. 
6,7. 
18,  19. 
"      S,  9. 
Ixvi,  .31. 


Pl,EUR08IOMA. 

Aestuarii,  xxxii,  10. 
anRulatun],  xxx,  .5,  9. 


,      \ 


u 


INDEX. 


il  !'•] 


Pl,KUR()SiaMA. 

iittenuatiim,  xxx,  2. 
Biiltioum,  xxxii,  5,  6. 
decorum,        "      4. 
(lelicatulum,  xxii,  22. 
elongatum,  xxxii,  2. 
eximium,         "      14. 
Fasc''-  ia,        "      11. 
formosum,       "      8, 9. 
Hippocampus,  xxxii,  7. 
Kiitzin<,'ii,  "      13. 

Macrum.  "      1. 

nubecula,  xxx,  4. 
obscniuui,  xxx,  1 ;  xxxii,  12. 
obtusatum,   "     K!,  14. 
pulchrum,  xxxii.  3 
((uadratum,  xxx,  10,  11. 
rigidum,        "     3. 
sciotense,        "      \'2. 
Spenceri,       "      6,  fS. 
virs;iniacum,  xxxi,  7. 

PODUOYSTIS. 

Americana,  li,  14,  IS. 
Adriatica,     "  19. 

PoUO.^IRA. 

argus,  lix,  4. 
Fcbigerii,  lix,  10,  12,  13. 
hormoides,  lix,  14-16. 
iiiaculati),  Ixix,  4,  ."). 
Montagnei,  lix,  17,  18. 
stellulifera,    "    II. 
variegata,  Ixix,  o. 

PODOSPHENIA. 

Bailevi,  Ixix,  1,  2. 
papeana,  xxii,  26,  27. 

PoRPBfA. 

<|uadrata,  Ixvi,  ',i',\. 
(piadriceps,  Ixvi,  25,  .SO. 

F.«ErDO-A  IILISCU.S. 

radiatus,  Ixxxiv,  6. 

PYXimCULA. 

compresHa,  Ixii,  17. 
cristata,         "      9. 
miciata,       "      7,  1 1. 
gigan,  "      30. 

globata,  xxii,  2,  3,  4. 
lens,  Ixii,  10. 
limbata,  Ixii,  8. 
urceolaris,  Ixii,  19. 
Pyxil_,a. 

.\mericana,  Ixv,  8,  17,  18. 


Pyx  ILL  A. 

Itorcale,  Ixv,  20.  23. 
<lnl)iH,  "     24. 

Kittnniana,    "     21. 
HiilMilata,         "     1". 

RAiMIIDOIHScrs. 

Christiana,  Ixxxiv,  2. 

IVi)igerii,         "         3,  4. 

Marylandica,  "         1. 
RAI'HOIiElS. 

affinis,  ixiii,  25. 

anipliiccros,  xxxvii,  lM-22. 

Archer!,  Ixiii,  20. 

Belgi<ii,  ixviii,  3. 

CDCconcis,  xxxvii,  11. 

liii:iiinen.Hiii,  Ixviii,  5. 

I'liscus,  Ixiii,  39. 

gcmiiiilfni,  xxxvii,  17. 

linearis,  ixiii,  2.S 

Oregonica,  Ixviii,  4. 

IVlr.ipolitana,  Ixiii,  26. 

pretii'sa,  xxxvii,  15. 

scalaris,         "        10. 
Khahiuinkma. 

adriaticiini,  li,  2,  3,  4. 

arcnainrii,     "  5,  6,  7. 

Aihinticniti,  Ixiii,  17. 

rnisiide,  xxxiv,  2t'. 

iniimtiiin,  li,  8-11. 

KllUMDOl'roKA. 

pariidoxa,  xxix,  3,  4 

KH1'/()SU1,KNMA. 

.\niericana,  Ixv,  3~i. 
calvpta,  "     6. 

Kriensis,  "     2. 

,         gracilis,  "1. 

Drnilhaf^lossa,  Ixv,  7. 
piU'i'liis,  Ixiv,  21. 
stylit'iirmis,  Ixviii,  28,  20. 

RHOICOSI'IIKNIA 

ciirvati,  xxvii,  IT,  IH,  19,20,  21. 

RlITJI.ARIA. 

c|«il(>n,  Ixviii,  1. 
hexagoiiM,  Ixviii.  2. 

SCKPTf'.ONKlH. 

cadm-ens,  xxxvii,  13. 
gi'iiiinatii,  "  14. 
nit7,^(•hi()idf•s,  xxxvii,  12. 

SCHIZOXKMA. 

.\  iiu'ricaniiMi,  xxviii,  13. 
Cdrnoidcs,  "       11,12. 


INDKX. 


45 


S<!HIZONKMA. 

cruciger,  xxviii,  9,  10. 


divergens, 

II 

14. 

(Trevillei, 

•< 

5,6. 

implicatuni, 

11 

7.8. 

riiinosiKsinia 

(1 

1,2. 

Hniithii, 

11 

;{,4. 

vulgare,  xxi 

i,  20 

ScOLlOrLEURA. 

antillarum, 

xxxi 

,12 

Jennerii, 

11 

13 

,17. 

liitestriata, 

(( 

8. 

tiimida, 

II 

5>, 

10. 

Staukoneis. 

acuta,  viii,  11. 

uncepB,  viii,  4,  8,  9. 

apiculata,  xxv,  7. 

Baileyi,  xxiv.  24. 

dilatat;!,  viii,  1. 

gracilc,  Jxviii,  25. 

gracilis,  viii,  10. 

Icodtaurum,  cxii,  9. 

infiata,  xxv,  11. 

legninen,  viii,  5. 

linearis,       "     o. 

iineata,  cxii,  11. 

iiionogratnma,  ixviii,  6,  7. 

Phoeneeenteron,  viii,  12,  15. 

phyllodes,  cxii,  9. 

producta,  viii,  7. 

pteroidea,  xxiv,  26. 

punctata,  viii,  1. 

pusila,  Ixviii,  24. 

salina,  viii,  6. 

Hignaa,  xxiv.  25. 

stanrophaena,  xxiv,  24. 

Stodderii,  xxv,  12. 
Stepha.nodiscus. 

afttra»a,  cxii,  IH. 

carconensiH,  Ixvi,  26,  27. 

lineatus,  Ixii,  4. 

Niagara,  Ixvi,  28,  29. 

SXEPHANOfiONIA. 

actinoptycus,  Ixvii,  6. 
Californicnm,    "     11,  12. 
polygona,  "     8,  16,  16. 

Stephanopyxib, 

aculata,  Ixii,  5. 
apiculata,  Ixii,  16. 
appendiculata,  Ixii,  12-15. 
Campeachiana,  Ixvii,  9,  10. 


8TEPHANOPVX1S. 

corona,  Ixii,  1,  6;  Ixvii,  20. 

craaBipina,  Ixii,  8. 

ferox,  Ixvi,  5,  6,  7. 

limbata,  Ixvii,  7. 

rudis,  "      21. 

Bpino,  Ixii,  2. 

flpinocissiraa,  Ixxxiv,  5. 

Huperba,  "        H,  9. 

turgida,  Ixvi,  1,  2. 

turrip,  Ixvi,  3,  4. 
Stictodesm  is. 

craticula,  Ixix,  II. 
8tictodisi;u8. 

Californiciis,  Ixxv,  5-8. 
•    Grevillianus,  Ixxi,  8. 

HardmanianuH,  Ixxv  3. 

Kittoniunup,  "      9,  10. 

simplex,  "     4. 

?  "      13-15. 

Stuiatklla. 

unipunctata,  ii,  1,12,  13. 
Surirella. 

anceps,  liii,  24,  25. 

angusta,  lii,  16,  17. 

apiculata,  liii,  9,  10. 

arctissima,   "    27. 

Baileyi,        "    22,23. 

Beldjeckii,  "    4. 

bifrons,  liv,  2. 

biseriata,  lii,  1,  2. 

eampylcxiiscus,  cviii,  13-15. 

cardinaliH,  liv,  6. 

cocconeis,  v,  10. 

crenulata,  Ivi,  5. 

cruciata,  lii,  6,  7. 

crumena,  liii,  5,  6. 

delicatissima,  liii,  17. 

elegans,  i,  1 ;  liv,  1  ;  Iv,  3, 10, 11. 

euglypta,  liii,  20,  21. 

fastuosa,  xxxiv,  21 ;  lii,  10 ;  Iv,  5. 

Febegerii,  Iv,  1. 

flutuinensis,  lii,  9. 


gemma, 


11. 


Geroltii,  Ivi,  3,  4. 
inducta,  liii,  14;  Iv,  2. 
intermedia,  liii,  26. 
l(pvigata,  Iv,  12. 
leptoptera,  Ivi,  2. 
lio8oraa,  v,  6. 
Mexicana,  liii,  1-3. 


I 


46 


iNDi;\. 


I  I 


SURIBKLLA. 

micTot'ora,  liii,  11. 

ininuta,         "     18,  19;  Ivi,  8. 

Missiusippica,  v,  5. 

Molleriana,  lii,  14,  1"). 

nobiliH,  cxi,  11. 

Norwegifii,  lii,  4,  o. 

oblonKU.        "    12,  IS. 

ovatn,  liii,  15.  1(>. 

ovatis,  liii,  7,  8. 

pan(iuriforiiii>',  Ivi,  11. 

piik'hra,  cvii,  7. 

Ratrayi,  Ixix,  10. 

recedpns,  lii,  3,  8. 

reflexa,  Ivi,  1. 

rfgina,  Iv,  7. 

robusta,  liv,  8. 

Saxonica,  Iv,  4. 

sentiH,  liv,  4. 

spirtClis,  liii,  12,  13. 

spblendidn,  i,  2-G;  liv,  3,  7;  Iv, 
8,9. 

striatiila,  Iv,  (». 

valida,  liv,  5. 
Symbolophora. 

acuta,  xxii,  7. 

trinitatiis,  Ixxviii,  14. 
Syndendrium. 

diadema,  Ixiii ;  1 1-13,  38. 
Synedba. 

acus,  xli,  2-4. 

acuta,  xli,  21-23,  3(». 

amphyrhynchus,  xli,  15. 

biceps,  "     13,  14. 

capitata,  xxxix,  5. 

XJhasei,  v,  1,  2. 

crotonensis,  xli,  19,  20. 

crystallina,  xxxix,  2,  3. 

Danica,  xl,  28-30 ;  xli,  %  6. 
,      fulgans,  xxxix,  4,  9. 

Gallionii,  xxxix,  10,  11. 

Goulardii,  xxv,  18,  19. 

investiens,  xli,  27,  29. 

invertens,  xxxix,  15. 

lanceolata,  xl,  21  ;  xli,  9. 

longiceps,  xl,  31. 

longissima,  xxxix,  7  ;  xl,  32. 

obtusa,  xl'    ■. 

offinis,    "    10-12,  33,  34. 

onyrrhynchiis,  xxxix,  12. 

pulchella,  xli,  16-18,  26. 


Hynkuua. 

robuHta,  xxxix,  1. 

rnnipcns,  xxxix,  13,  14. 

spatbiilifeni,  xli,  I. 

Hiiperiiji,  xli,  24,  2"),  32. 

ulna,  xxxix,  8,  xli,  31. 

nndiilata.  xxxix,  (i. 

valt'iiw.  v,  13. 

vanoliciiii',  xxxix.  It!. 

vitrea,  xli,  8. 
Syrinoidium. 

Americana,  Ixiv,  38, 

simplex,  "     37. 

SYSTKI'HANKA. 

Kaena,  Ixiii,  7, 
'Iabem.akia. 

feiieHtiata,  I,  1-6, 
flocMilosM  1,  7-11, 
nodoHn,  Ixviii,  21, 
robuHta,  Ixviii,  22. 

TkBI'SINOE. 

Americana,  Ixiii,  (». 

intermedia,  Ixxviii,  1,  2. 

magna,  Ixi,  7. 

minima,  Ixi,  12. 

miisica,     "     6,  13-15. 

tetragramma,  Ixi,  8,  9,  10.  11. 
Tessela. 

internipta,  xlviii,  14. 
Tetracyclus. 

emarginatUH,  1,  12,  15,  16. 

lacustri,^,  I.  13,  14,  17-20. 

TOXONIDIA. 

Gregoriana,  Ixix,  12. 
Tricekatium. 

aculeatiim.  xxv,  21. 
altermanf,  c,  16,  18;  cvi,  2. 
amblyceroH,  Ixxvii,  3. 
Americanum,  cv,  7;  cxi,  18. 
amoeniim,  ci,  14. 
amphiletras,  civ,  2. 
antillarum,  ci,  1. 
arcticum,  cv,  5,  8 ;   cvi,  7. 
biqnadratum,  civ,  10,  17. 
Brownianiim,  ci,  10. 
bullosum,  c,  3. 

Californicum,  xcix,  7;  cv,  13. 
Campeachianiim,  ex,  2. 
cinnamonium,  Ixxv,  II  ;  cv,  18. 
condecornm,  cii,  6. 
consimije,  xcix,  10;  cvi,  6. 


!- 


INDKX. 


47 


'rilUKKATIUM. 

iliiliiiiiii,  v\'\,  13. 
♦)lff;aiiH,  I'i,  6,  7. 
KlirenluT^ii,  dv,  13,  16, 
fnviiH,  xcix,  1,  2. 
tiniliriatiiiii,  xcix,  34. 
FiHclieri,  cii,  8. 
franlioli?   cvi,  9,  II. 
uraiulf,  civ,  1. 
Uriin,  xcix,  5,  6. 
Ilarrisonianiini,  c,  13,  14. 
lIoil|)riiiianuiii,  ixxviii,  8,  9. 
lieternporimi,  c,  (>. 
inik'iitarum,  Ixxviii,  7. 
in**if>;atis,  xfix,  8,  i),    2;    ciii,  4. 
interpiinctatum,  c,  s. 
irrej^nlare,  c,  8. 
jiicatense,  cii,  4. 

Kainii,  ixxviii,  10  ;  civ,  S  ;  cv,lC 
Kittonianiim,  ci,  2. 
litliodismium,  civ,  18,  19. 
Marylandicuni,  ci,  8. 
menihraiiaceum,  cv,  0. 
Monlercyii,  cii,  1  ;  cvii,  6,  9. 
niiricatiiin,  cii,  7. 
()bli(ium,  cvi,  10. 
ohscurniii,  cii,  10. 
obtiisiiin,  civ,  7  ;  cviii,  3. 
ornatum,  ci,  15. 
paralleliim,  c,  11,  12,  15. 
pentacrinus,  Ixix,  6,  7;  ci,  16. 
liileuH,  cviii,  2. 
piluluH,  cviii,  1. 
punctatiim,  ci,  9,  12. 


TltlCKHATltlM. 

<|na(lran|{ular(>,  cvi,  8. 

reccptum,  ci,  13. 

retina,  cv,  17. 

reticuhini,  civ,  5,  fi  ;  cviii,  Ifi. 

robiislcm,  ci,  11. 

scituliim,  cvi,  1. 

Hculptum,  "    3,');  cxi,  4. 

Heceruen<luin,  c,  17. 

Hemicirciiiare,  cv,  2,  3,  4. 

Siiadboltii,  Ixiv,  10. 

HolenoceroH,  ci,  .'!. 

HpinoHum,  xxv,  22;  Ixxvii,  4,  9, 

10;  c,  11,25. 
striolatnm,  civ,  11,  12,  14. 
siibcornulum,  ci,  4,  5. 
subrotundatiini,  cii,  3;  cxii,  7. 
tabellarium,  c,  1. 
teHselatmn,  cii,  9. 
tridactyliim,  cv,  1. 
tripartitum,  c,  v. 
triBcuiuni,  c,  9,  10. 
uncinatum,  cii,  12. 
nndulatum,  civ,  3,  9;  cv,  14. 
validiim,  cii,  11. 
variabile,  Ixiii,  3,  5. 
venulosum,  c,  2,  4,  7. 
Trochosira. 

spinosa,  Ixvii,  13,  14. 

XANTHI0PSI!<. 

utnbonatns,  Ixxxiv,  10. 
Xanthiopyxis. 

cingulata,  Ixii,  27. 
umbonatUH,  Ixxiv,  1(5. 


.!• 


i 


THE  AUTHOR'S    SERIOUS    ILLNESS   WHILE    HIS  WORK  WAS 

GOING  THROUGH  THE  PRESS,  GAVE  RISE  TO  THE 

FOLLOWING  ERRATA. 


Plate 


▼i 

X 

XV 

xvii, 
xix 

XX, 

xxi, 

xxii, 

xxiii, 

xxiii. 

xxiv, 

XXV, 

xxvii, 
xxvii, 
xxx, 

XXX. 

xxxi, 
xxxvii. 
xxxix, 
xxxix, 

xl, 

xliii, 

xlv, 

xlvi, 

xlvii, 

liii, 

Hv, 

lix 

lix, 


KiK 


>ShmilH  rfud 


Plate 


FiK. 


U),  17,  18, 
11,  Itf,  20, 
Hi,  'i'i, 

'Si, 

itj; 
■■\ 

11, 

II,  12,  18. 

4, 
14, 

9, 
10, 

14,  15, 
25, 
H, 
24,  25, 

2, 

4, 

4, 

15. 
21, 
I  20, 
10,11, 

i     1, 
20, 

17, 

6, 

3, 
11, 


canalictili. 

Ixi. 

8,9, 

cyinltifiTa. 

ixii, 

4. 

coHeu'loniiis. 

Ixii,          [ 

^ 

Cii'sareie. 

Ixii, 

17, 

Newlwryi. 

ixii, 
Ixli,       1 

17. 

);rii('iliH. 

3-R, 

nermii^na. 
MnHtogloia. 

Ixiii, 

9,  10, 

Ixi?, 

2(;,  28,  2it. 

exempta. 

ixvli, 
ixviil, 

21, 

permagna. 

1.5.  IH, 

producta. 

18,  19, 

ucuminiita. 

ixx, 

8,9. 

major.                     , 
liriiosa.                    : 

Ixxi, 

I, 

Ixxv, 

11, 

HimulatiH.                 1 

Ixxx, 

9, 

permagna.               i 

Izxxi, 

4, 

eleganH. 

Ixxxi, 

•A 

HtauroneiformiH. 

Ixxxiv, 

3.4, 

Olivaceum. 

Ixxxv, 

9, 

exllis. 
obtUHatuna. 

Ixxxv, 

18, 

Ixxxvi, 

4, 

CeratoneiH. 

Ixxxviii, 

5, 

Liiidheimerii. 

xc, 

12, 

(liniereKramma. 

xcv, 

9, 

fulgenH. 

^, 

9,10, 

investiena. 

\ 

17, 

lanceolata. 

6, 

ttuminensis. 

cv, 

18, 

Gregorianum. 

cvi, 

10, 

subtilisHima. 

cvii, 

8,10, 

eonstruens. 

cviii, 

5,6, 

ilelicatiHsiina. 

1 

GuatemalensiB. 

cviii, 

i    7, 

Hiibtilis. 

cix. 

1     1-5, 

Btellilifera. 

'cxii, 

:    7, 

.SliDiiii!  read 

tetniKramma. 

HtepiianodisciiH. 

aciileata. 

Pyxidioula. 

comprt'twa. 

vuriitbile. 

baoillu.li. 

bifidn. 

Pyxilla. 

polygona. 

Colletoneiua. 

parvuluH. 

pnlcher. 

cinnamotneuiu. 

SCIllptUH. 

iirachne. 
Moroniensis. 
RaphidcxliscuH. 
EhrenberRii. 
flpiniferufi. 
oeiilus. 
iCalifornica. 
Iheleroporus. 
Mobilensis. 
trisulcuni. 
secernendum. 
{Condecorum. 
icinnamomenm. 
obliquum. 
Mastogloia. 
'Cymatopleura, 

elliptica. 
ICalifornica. 
!  nervosa. 
{Subrotundatuni. 


The  fore<fomg  also  denote  errata  in  the  Index  with  some  unimportant  exceptions. 


Page  X, 

"  X, 

"  xi, 

"  3Ci, 

"  17, 

•'  27, 

"  28, 


v^ 


line  6,  Omit  the  words  "  raph4  or  median  line." 

"  8,  Omit  "  this  suture"  and  insert  *'  a  raph6  or  median  line." 

"  4,  p^or  "  sides  "  read  "  frustules." 

"  19,  For  "sides"  read  "form." 

"  9,  Omit  "out." 

"  25,  Read  "  Pyxilla." 

"  28,  Insert  under  Biddulphia,  "Angular  forms  Tbiceratium." 


II 


;  ?    I    .f   c 


■^    ^'-if--/^.     /<^,   ->■  '/ 


?5 


PLATE  I. 

Figures  maKnifled  m)  <\\Mneion. 


Fig.    I.  SuHiRBLLA  Ri.RTiANa,  Hhowing  the  ningle  nucleiiB  and  the  radial 

distribution  of  the  enduohrome 
"      2.  SuRiRBLLA  HPI.KNDIDA,  showing  the  two  nuclei  and  the  germinal  (?) 

dot.     Also  the  distribution  of  the  endochromo  in  the  cannlicnli, 
'   and  the  arrangetnctit  of  the  lobes  of  the  endochronie  with  re- 
garil  to  the  germinal  (?)  dot. 
Fig*.  3,  4.       The  sporangium  of  the  Surirella  Splendida  after  the  complete  fusion 
of  the  endochrome ;  the  valves  of  the  parent  frustides  adhering. 
"      5,  6.        HuRIRfSLLA  8PLBNUIDA,  early  stage  of  conjugation ;  the  fusion  of 
the  two  endoohromes  resulting  in  the  enlargement  of  the  in- 
ternal contents,  and  the  separation  of  the  valves  of  the  frustules 
which  adhere  to  the  mucous  mas^  of  the  sporangium. 
Fig.   7.  Epithbmia  ventricosa,  Thallus  containing  matured  frustules  and 

sporea  the  same  as  are  found  in  the  diatom  itself. 
'"      8.  Thallus  containing  several  diatoms  in  early  and  later  stages  of  de- 

velopment 
"      9.  Two  diatoms  (Navicula)  conjugating  and  surrounded  by  a  gelatinous 

covering:  the  valves  of  frnstule  separated  and  the  endochronie 
contracted  into  spherical  masses. 
Cyhbella,   phases  of  growth  of  the  sporangium   in   its   mucous 

envelope. 
Process  of  division  and   multiplication  of  diatoms;    a   Navicula; 
P.P.,  the  siliceous  epiderm;  G.O.,  the  sides  sliding  one  over 
the  other;   A.,  the  nucleus ;  B.  B.  B.,  endochrome  surrounding 
the  spore  or  primordial  cell ;  D.  D.,  central  cavities. 
14.         A.,  (he  spore  dividing  and  the  end  of  the  epiderm  (P.P.)  sliding 

apart. 
\K  A.\  ,  spore   fully  divided   and   the  frustule  separated  by  forming 

dividing  membranes  ;  thus  there  are  two  frustules  approaching 
coiu»»J^t«»  develo|>ment. 


10-12. 


13. 


«. 


» i 


i 


PLATE  ir. 

Klgures  miMrnilled  fttKi  dlaineterM, 


Fig.    1.  Amphihr'ra    (Aiiipliipleiira)    Livulneimeri,    \nr.    (rriin.   Oregon, 

Tey  .s,  etc  .  T.  K  M.S.  IM77.  p.  17.). 
"      2.  !*i,eitfj8I(;m.\transvkh,s.\le,W.  S.:S.  B.  D.  1 1.  p.  ltd,  Sm.  Sp.T.4ir}. 

"  INTKHMKDIIM,  W.  S.;  ,S    B.  D.  1  p.  64,  "21,  f.  200,  Sni. 

Sp.  T.  40'). 
Ami'hii'Kkba  i'ii,(!HKA,  Bail,  front  and  side  view;   Bail    M.  ().  p. 
;!H— 2f.  1(5;   V.  H.  29:\  (.  1,2. 
i.EPiDoi'TKRA,  Greg.  T.  M.  S.  l»^l,  p.  76.  1,  f.  mt ;  V, 
11,22,  f.  2,  3;  Sm  Sp.  T.  2;!. 
"  HYALINA,  Eiilenst.     Probably  a  v;ir.  of  A.  Paliidoxa, 

W.  S. ;  also  very  near  Amphora  intermMin,  Lewis* ; 
lor  Grev.'.s  fig.  v.  V.  H.  22,  f.  17. 
"  <iiiADS'FA8CiATA,  Bail.  M.  ().  p.  H8,  2,  f.  2-4,  doef  not 

pos.sess  nuioh  value,  the  hands  of  colored  endo- 
chrome  mean  nothing. 
"  URNATA,  Bail.  M.  O.  p.  38,  2,  f.  I-'i,  2;{;  H.  L.  S.,  this 

aci^ording  to   Bhil.'s  fig.;  for  larger  form  v.   PI. 
48,  f.  2L 
"  (,'onst:iicta,  Ehrb.,  marine  and   brackish  water    E. 

Amer.  2-6,  f.  28;  S.  B.  D.  Vol.  ],  p.  44,  15,  f. 
126 ;   Prit.  p.  9  23,  l*;,  f.  1  ;  Sm.  Sp.  T.,  21. 
"  CON8PICUA,  Grev.,  (a  pulchra  var.)  T.  M.  S.,  p.  86, 

(1861),  PI.  10,    16;   V.  H.,  22  b.  f.  .'{,  Hudson 
River,  N.  Y. 
"  MA.viMA,  Greg.,  D.  C,  p.  ;{5,  4,  f.  61 ;  Lens,  Vol,  If, 

No.  11,  p.  89;  V.  H.,  22,  f.  4. 
"  nFx;us8ATA,  Grun.,  V.  H.,  22,  f.  13. 

"  ALATA,  Ehrb.,  three  views,  K.  B.,  p.  107,  3,  f.  60; 

S.  B.  D.,  Vol.  I,  p.  44,  15,  f.  124  ;  V.  H.,  22.  f. 
II,  12. 
"      22,  23.  "  I'ALUDosA,  VV.  8. ;  S.  B.  D.,  p.  44,  31,  f.  269  ;  V.  H., 

22,  f.  10. 


u 

;{. 

Figs. 

4,5. 

Fig. 

6. 

Figs. 

7,8. 

Figs. 

9-11. 

Figs. 

12,  13. 

<i 

14,  15. 

Fig. 

16. 

Figs. 

17,  18. 

Fig. 

19. 

Figs. 

20,  21. 

I       t;k 


k 


!• 


t»LATE  Itt. 


P'tjflirn*  niflKMlflpd  .tOO  rHatyu^toM; 


Fig. 

1-3. 

FiR. 

4. 

<i 

'"). 

(1 

«. 

Firs. 
Fig. 

7,S. 
9. 

Figs. 

10,  11 

I( 

12,  IH. 

FiK. 

14. 

(( 

15. 

1< 

16. 

U 

17. 

FiRH 

18,  1« 

II 

20,  21 

Fir. 

22. 

tt 

23. 

FiRs 

Fig. 

i( 

24,  25 
26. 

27. 

11 

28. 

FiRH 

29,  m 

Amphora  robhsta,  Cirev.,  D.  C,  p.  44i .!),  f.  79;  l-ietlH,  p.  8,  No.  44* 

3.  f.  2;  Schra.  At.,  27,  f.  38. 

"  F.xciHA,  Greg.,  H.  L.  S.,  in  Lens,  p.  75,  No.  2€,  2,  f.  4; 

8chm.  At.,  39,  f.  3. 
"  ScHMiDTii,  Grnii.,  Sclim.  At.,  28,  f.  2,  3,  Camp.  Bay. 

"  ORANULATA,  GfCR.,  (the  hack  view)  Hohm.  At.,  27,  f.  66 ; 

Gulf  of  Mexico. 
"  9PECTABILI8,  Greig.,  Sohm.  At.,  40,  f.  18-23. 

PEi.LUciDA,  GreR.,  H.  L.  S.,  Lens,  p.  78,  No.  36,  2,  f.  15 ; 

Schm.,  At..  27,  f.  11,  36;  39,  65. 
"  PROTEUH,  Greg.,  D  C,  Trans.  Roy.  Soc  ,  Edinb.,  xxi,  PI. 

4,  1857  ;  Schm.  At.,  27,  f.  63  ;  f.  1-7 ;  Salt  Lake. 

•'  VENETA,  Kutz.,  K.  B..  p.  108,  3,  f.  25 ;  H.  L.  8. ;  Lens, 

p.  84,  No.  58,  67 ;  Schm.  At.,  27,  f.  16. 
LIBYCA,  Ehrb.,  Schm.  At.,  26,  f.  102-105  ;  K.  B.,  p.  107, 
29,  f.  28;  Sm.  8p.T.,  No.  34. 
"  EX8ECTA,  Grun.,  Schm.  At.,  27,  f.  54,  55 ;  39,  f.  4 ;  Cani- 

peachy  Bay. 
OBTECTA,  L.  W.B. ;  B.  J.  N.  H  ,  p.  348,  f.  A.  B.,  H.  L.  S., 

Lens,  p.  77,  No.  34,  2.  f.  12,  a-c. 
PELLUCiDA,  Greg.,  G.  D.  C,  PI.  iv,  f.  73.;  H.  L.  8., 
Lens,  p.  78,  No.  36,  2,  f.  15.;  Schm.  At.,  27,  f.  11, 
36,  37,  65. 
"  TCRGIDA,  Greg.,   Schm.  At.,  25,  f.  22,  etc.;    H,  L.  8., 

Lens,  p,  85,  No.  66,  3,  f.  27. 
BOBEOIA,  Ehrb.,  Abh.,  1872,  PI.  2,  f.  20;  Schm.  At.,  28, 
f.  13-15.;  comp.  PI.  2,  f.  1. 
"  LAEVI8,  Greg.,  H.  L.  8.,  Lens,  p.  70,  No.  1,  1,  f.  13,  Schm. 

At.,  26,  f.  8. 
R1M08A,  Ehrb.,  Mik.,  6,  1,  f.  27 ;  13,  2,  f.  17 ;  H.  L.  8., 

Lens,  p.  81,  No.  49, 3,  f  12. 
Mexicana,  Schm.  At.,  27,  f.  47-49. 
"  MI0AN8,  Schm.  At.,  27,  f.  18,  Campeachy  Bay. 

"  TRUNCATA,  Greg.,  H.  L.  8.,  Lens,  p.  76,  No.  29,  Schm. 

At.,  28,  f.  4,  Campeachy  Bay. 
'  flULCATA,  Breb.,  (Obtecta?)  Schm.  At.,  26,  f.  46,  47;  27, 

f.  12, 1.3.,  H.  L.  8.,  L^ns,  p  75,  No.  29,  2,  f.  11. 
OBTU8A,  Greg.,  T.  M.  8.,  1857,  p.  72,  1,  f.  34;  H.  L  8., 
Lens,  p.  70,  No.  5,  1,  f.  5,  Schm.  At.,  40,  f.  4-7. 


. 


Plate  III. 


'■  h. 


f3 
■   il 

i. 

n. 


PLATE  rV. 

Figures  iiiiiKUltitiU  50(>  iliuiueterN. 


Kig.    1 .  A MPHORA  EwKEt^i.v,  Elirh.,  1872,  PI.  2,  f.  20 ;  Schin.  At.,  28,  f.  18-15. 

2,  "  VARCIMKN,  Grun.,  Schin.  At.,  27,  ('.  ;")7. 

i.AEvmsiMi':,  Greg.,  H.  L.  8.,  in  lienn,  p.  78,  No.  81,  1  f.  14. 
"  BKiiBBA,  Gnin.,  Schiii.  At.,  2f>.  f.  (id.  (57,  ft»'. 

"  RicHAKDTiANA,  Gmn.,  H.   I,    S.,   LeiiH,  p.  84    No.  62; 

Schiii.  \i.,  89,  f.  .{S-.'Sa.     Doiiiiti'ully  un  .Amphora. 
"  CYMitiFFioRHA,  Git'u;.,   H.  L.  S.,  Lens,  p.  85,  No.  fi'^,  3,  f. 

2fi;  Sclini.  .\t.,  2"),  f.  17-11>;  26,  f  M8;  W,  f.  18. 
"  coi"F.«K()i(.Mi8,  K.  H..  p.   108,  5,  t'.  ;{7,  H.  1.,.  S.,  Lens,  p. 

!<'J^,  No.  aS,  ;{.  f.  17,  Schiii.  At.,  2ti,  (.  !yt>-i)H. 
'•  INFLATA,  Gmn.,  Hehin.  \t.,  2r),  f.  29,  30. 

"  LiBYCA,  Ehrl).,  eomp.  Pi.  2,  f.  14. 

ARKoi.ATA,  (inni.,  S(>Jun.  At.,  39,  f.  28. 
"  LANcKoi.ATA,  Cleve.,  M.  .).,   1874,  p.  25(»,  8,  f.  Ji;  Sclini. 

At.,  2.'),  f.  (i. 
"  Cymhikfkra,  vide,  lO,  above. 

"  tOFK.KKORMIS    r/(/t!  1 1,  ii' ove. 

C1.KVIA,    A.  Selun.  At.,  2o,  f.  40-48. 
"  EvLKNSTKiNii,  tjinn.,  Sflini.  .\t.,  2."),  f.   1-3,   v.  nearly 

allied  to  .\.  lanceolata. 
Dklhhinea,  L.  W.  B.;  B.  J.  N.  H.  VII,  PI.  1,  f.  1,  Lens, 

p.  73,  No.  22,  1,  r.  l.-i :   Hilun.  At..  40,  f.  25-27. 
DUBIA,  Greg..  H.  L.  S.,  Lens,  80,  No.  42,  Sehni.  At.,  27,  f. 
2()-2(J. 
''.  ciNciUi-ATA,  Gleve.,  Schni.   At.,  2(5.  f.  17;  I.  M.,  1879,  p. 

29,  2,  f.  15. 
(iRKViLLiANA,  Gre]ir.,  T.  M.  S.,  1857,  p.  73,  1,  f.  36,  Lens, 

p.  77,  No.  32,  2,  f.  9,     rampeaehiana?     (irun. 

ovAi.is.  K.  B.,  p.  107,  "),  f.  35,  .39;  S.  B  D.,  p.  19,  2,  f.  26, 

II.  L.  S.,  Lens,  ,H0,  No.  45,  2,  f.  17,  S«'lini.  At.,  26,  (. 

lOtl-111. 

Figf*.  33,  34.  "  KOH.MosA,  Cleve..  S.  lun    At.,  27,  f.  58  ;  28,  f.  6,  34 ;  39,  f.  2. 

F'iff.   35.  "  .JHANiLATA,  (ire!.r.,  Iront  view?  Scbm.   At.,   27,   f,  67; 

small  form,  A.  ;;igantea,  Griin.,  Gulf  of  Mexico. 
Fi^s.  36,  37.  "  fUAssA,  (irejf.,  H.  L.  S.,  Lens,  7(i,  No.  29,  2,  f.  5,  T.  M.  K., 

1857,  p.  72,  I,  f.  35. 
"      38,3!).  "  GRi'Nnf,ERii,  Gmn.,  Sehm.  At.,  28,  f.  24-27;  39,  f.  25. 


I( 

3-6. 

FijJB 

7,8. 

Fig. 

!». 

41 

Ht. 

(( 

11. 

Figs 

12,  13. 

Fig. 

14. 

.  1 

15. 

a 

16. 

Figs 

17,  18 

it 

19,20 

Fig. 

21. 

u 

22. 

Figs 

23,  24 

11 

25,  26 

Fig. 

27, 

kf 

28. 

»i 

29-32. 

-i> 


n 


I'lat..  IV 


. 


.\ 


l\ 


KigB 

1,2. 

Fig. 

3. 

(I 

4. 

ti 

5. 

ti 

6. 

ii 

7. 

Fig8 

8,y. 

FJK. 

10. 

11. 

i( 

12. 

*1 

13-15 

"  16. 

"  17. 

'  18. 

"  19. 

"  20. 

•'  21. 

"  22. 


23. 
24. 
25. 


PLATE  V. 
Ftgiireii  ma([niI1<'d  fiOO  dluuieters. 


SvNKKKA  Chaski,  Tliouiau ;  W.  ami  C,   1,  p.  4,  2,  f.  3.     A  var.  of 

S.  longiatima,  8.  B.  D.,  p.  72,  12,  f.  95. 
.■V.Mi'HU'KcKA  ELEGAN8,  Greg.,  T.  M.  8.,  1H57,  p.  10,  1,  f.  30;  H.  L. 

S.,  Lens,  p.  73,  No.  19.  1.  f.  17. 
Amphkka  CUUA8,  Ehrb.  Mik.,  ti,  2,  f.  13;    H.-  L.  8.,  Lens,  p.  73, 

sub  No.  22 ;  p.  i<0,  sm6  No.  45. 
SuKiKKLLA  MiswissU'PicA,  Ehib.  Mik.  35,  A.  8,  t'.  o;  MiHsiHsippi. 
"  uViSOMA,  Ehrb.  Mik.,  33,  14,  f.  25,  Connecticut,  prol». 

ably  one  of  the  platfs  of  RbitlHloneoia. 
(Jooi'O.NKSs  uKMMATA.  Ehrb.  Mik.,  37,  3,  2,  Oregon. 
CoccoKEis    RHOMBIFRHA,    Bail,    and    Harv.,    ;>.    175,   9,   f.   3,   4, 

CaliforniH. 
yuRlRELi.A  cuoco>'Ei3,  Ehrb.  Mik.,  3.'>,  \.,  8,3;    u  dubiou«  form, 

not  u  Siirirella,  nor  a  ('occoueis*. 
CocKJuNEis,  Ki'XiALis,  Grev.,  M.  .1.,  185V'.  p.  156,  7,  f.  1      California 

guano. 
CocooNKis  SDLCATA,  Bail,  ami  Harv.,  p.  175,9,  f.  5. 
Amphjpkora  viTREA,  S.  B.  I).,  Vol.  1,  p.  44,  31,  f.  270;  V.  H ,  22, 

f.  29,  Mobile,  Ala. 
D1MKHKGR.4..M.MA  Nov*:  CiKSARjKA,  (fruKtuleN  attai'hetl )  Kain  and 

Schuitzf,  Bot.  Bull.,  Mar.,  1889,  Vol.  XVI,  No.  3, 

artesian  well,  .Vtlanlic  City,  N.  J. 
Fkawilaria  Krkmontii  Ehrb.  Abh.,  1870,  50,  2,  1,  f.  5,  of  doubt- 
ful value,  probably  a  hoop  of  mmie  diat^>ni,  Salt  liake. 
Synkuba  VA1.EN8,  Elirb.,  Prit.,  782,  12,  44. 
t^AGii.AKiA  VENTER.  Ehrl).  .-Vbh.,  1869,  1,  a   Mexico.      Probably 

merely  a  htM>p  of  Oilontidiuni. 
Fra«4Ilaria  NEWi,£Rui,    Ehrb.    1870,  5C,  3,  1,   12,  Nevada.      A 

doubtful  form,  may  be  a  Biblarium. 
Kraoilaria  inflexa,    Ehrb.,  not   a   good   Hpecinien   or   species; 

probably  a  hoop  of  Eunotia. 
l>IMKR^xjRAMMA  Novj*:  i:jE»\HM\,  K.  and  8.,  (fruKtultw  detached) 

Typ.  form  to  right,  var.  ObtUHa  to  left,  Bot.  Bull.  Vol. 

XVI,  No.  3,  1889,  artesian  well,  Atlantic  City,  N.  J. 

UlMEREfiRA.MMA  FULVUM,  KalfN.,  V.  H.,  36,  f.  7,  8. 

Mabtogloea  apk.ulata,  S.  B,  1).,  M,  p.  65,  62,  f.  3,  87. 
EnYomogakteIr  Woodwarwii,  Ehrb.  Abh.,   1870,  var.  Culifomi*. 
Probably  a  form  of  Amphora. 


Plato  \' 


1 


Fig. 

3 

(■ 

4. 

« 

6. 

Figs 

6,7 

« 

8,9 

Fig. 

10. 

« 

11. 

i( 

12. 

i( 

13. 

PLATE  VI. 

Figures  miigntfled  500  diameters. 


Figs.  1,  2.       CoccoNEMA  LANCEOLATOM,  Khfb.  Mik.,  39,  3,  f.  17,  etc.     S.  B.  D., 

r,  p.  75,  23,  f.  219  ;  Sclnn.  .\t.,  10,  f.  8-10. 
(Trannles  figured,  not  coarse  enouKh. 
CoccoNEMA  Mexicanum    Ehrl).  Mik.,  3:^,  7,  f  6;  Abh.,  1869,  2,  1, 

f.  1 ;  Schm.  At.,  10,  f.  3.',  33;  71,  f.  82. 
Cocconema  Janischii,  Schm.  At,  10,  f.  3-1,  35;  71,  f.  81.     Nearly 

related  to  C.  cistula. 
Cymbei.la  CI8TULA,  Hep.,  Mik.,  38,  A.,  20. 1.  5;  37,  3,  f.  3 ;  S.  B.  D., 

J,  J).  76,  23,  f.  221.     Schm  At.,  10,  f.  1-4. 
CoccoNKMA  PARVUM,  W.  S.,  s.  B.  D.,  I,  p  76,  2^:,  f.  222;  24,  f.  222; 

Schm.  At..  10,  f.  14,  15 
Cymbblla  cymbiformis.  Brt-b.,  Ai.  Fal.,  p.  49,  PI.  7  ;  V.  H.,  2,  f.  11. 
Cocconema  lanceolatum,  vide  f.  l-'^,  above. 
Cym BELLA  CISTULA,  vide  f.  (),  7-     State  of  devi-lopment. 
Cymbella  ventricosa,  Ag.,  <  onsp.,  p.  9;  K.  B.,  p.  80,  6,  f.  16; 

Schm    At.,  9,  f.  32;  7'-?,  f.  11. 
"      14.        Cocconema  lanceolatum,  W.  S.,  in  vegetative  state,  S.  B.  D.,  p. 

75,  23,  f.  219.  , 


> 


I'lul.M. 


r 


KigH. 

«,  10. 

FiK. 

11. 

Figs. 

12,  18 

Fig. 

14. 

t( 

1.'). 

FMiATF  vrr. 


FiKiircH  iiiiiKnlflml  .'lUi  (lluiiiitl'<rN. 


FiK*'.  1.  2.       CV.MBK1-LA  HKi'KHui'LfciUHA,  Kg.,  .Si'iiiii.  At.,  i',  1. 8-'»;  ('hprrvtioW,  >i»-, 
FIr.   3.  "  EHaENBKHoii,  K,K..  K    B.,  p.  7}»,  «,  I.  11 :  S«-hm.  At.,  i*. 

f.  ((-9,  1«-18;  S.  H.  I)..  1,  \,.  17,  1'.  (.  21. 
Figw.  -1,  •').  "  iiA.xTU()iUFX,  Kg  ,  K.  B.,  |i.  79,  0,  f.  4:  Nclun.  At.,  H,  f.  1, 

2,  72,   f.    12-14.     V.    H.,  -J,   I'.   S;    (.   4,   v.   lu-ar  C. 
Innceoiatii. 
Fig.   tl,  "  Uki.vktua,  Kg.,  K.  B.,  \>.  79,  C.  f  13 ;  .s.  B.  1).,  1,  p.  18, 

2,  f.  24;  Scliin.  A«.,  Id,  f.  IM,  21  ;   V.  11.,  2,  f.  15. 
"      7.  "  XAVKiLiKOKMis,  Aufrs.,  Heili.  ("i)ms|i.,  p.   iOS,    1,  f.  ;'., 

V.  H.,  2,  r.  f). 
"      8.  "  i,Kri'(K:EU«)8,  Kg.,  K.  B.,  |).  MSt.  (I,  I'.  14.      Kill),  .s.  {).,  p. 

22,7,  f.  14;   V.  H..  :{,  f.  24. 
i:x*is.v,  Kg.,  K.  B.,  p.  80,  «,  f.  17.     Htlmi.  Ai..  71,  (.  ;{.".. 
36.     More  tlian  usimlly  roxtrHle. 
"  Kamtmchatk  A.  (irim.,  Moll.,  T.,  p.  ;i,  2,  Ut,  Sohm.  .\i., 

10,  f.  ;51. 
"  (iA8TRoini'>,  Kg.,  corijtigiiling  antl  developing  in  gelsi- 

tinoiis  envelope. 
"  N'AVKliLU'dKMis,  .ViuTs.,  siune  an  tiunre  7. 

"  AMriiicGiMi.vi.A,  Niug.,  fSflini.  .Vl.,  !t,  f.  (!2,  til,  (it!;  71, 

r.  .')2;    v.  H.,  2,  I   ti. 
"      lU.  "  cusi'iDATA,  Kg.,  K.  B.,  p.  79,  3,  f.  40,  H.  B.  D.,  I,  p.  18, 

2,  f.  22;  Sclnn.  At.,  9,  f.  50.  '),\.  of). 
FigH.  17,  18.  "  sTOMATOPHOHA,  iiniu.,  Hc'liin.  At.,  10,  »'.  28-30. 

Fig.    19.  "  I'ARVA,  V.  H.,  2,  f.  14.     ( C(K'conemti  parviini.) 

"      20.  "  t:iJ8Fii)ATA,  var.  from  (.'unuda,  for  retereiiee8  vide  f.  IH. 

"      21.  "  KiiRENUEKCiii,    Kg.,  a  xiuHller   form    than  f.    3,   above. 

Nearly  allieti  to  eiiHpidutu. 
"      22.  "  .MAriiLATA,   Kg.,  K.  B.,  p.  79.  t)7,  (.  2,  «.  B.  D.,  1,  p.  18, 

2,  f.  23:  V.  H.,  2,  f.  1«,  17. 
"  (iAHTROiDEH,  Kg.,  comp.,  f.  4,  i"),  and  12,  18. 

Amkru;ana,  a.  S.,  Sohm.  At.,  9,  f.  1.^  2tl.      I'roliahly  a 
var.  of  Ehreid)ergii. 
"  KhkenhkH(jii,  forma  minor.   Kg.,  eomp.  f.  3,  21,  aliove. 

(mA«'iU8,  Kg.,  K.  B.,  p.  79,  (i,  f  9:   Kal..  .S.   D.,  p.  22,  7, 
f.  12;  H.  L.  S.,  Sp.  T.,  No.  119. 
'■  ruRGiDULA,  A.  H.,  Scliin.  .\t.,  9,  f.  2;i-2(». 

«'VMBiFORMi8,   Brel).,  Alg.  Fal.,  p.  49,  J'l.  7  ;    V.  II.,  2, 
f.  11. 
"      29.  ••  .YsTiii-A,   Briin.,    A!.,  p.  .'iS,  .1,  f.  18.,  V.  H.,  ]>.  i\4,  2,  (. 

12,  13. 
"     30.  "  <rRTA,  A.S.,  Sclim.  At.,  9,  f.  47. 

FigH.  31,32.  "  AFKiNis,  Kg.,  K.  B.,  p.  80,  6,  f.  If.;  S.   B.  D.,  I,  p.  18, 

30,  f.  250;  Schrn.  At.,  9,  (.  29,  38 ;  72,  f.  28,  29. 
"      33,  34.  "  ANGMCA,  Lag.,  Schm.  At,  9,  f.  63;  V.  H.,  2,  f.  4. 

Fig.   36.  "  f'iBTULA,  Briin.,  forma  minor,  V.  H.,  Fl.  11,  f.  13. 


(1 

23. 

*• 

24. 

" 

26. 

u 

26. 

l( 

27. 

tf 

28. 

j 


i'lrtt»>\ll. 


PLATK  VIII. 

,    PlKurcN  iiuiKiiUleil  >'iiu,illiiiiiiMi'ri>, 


li 

3. 

11 

4. 

•  i 

fi. 

II 

u. 

KiK.    1.  SruHoNKiH  I'DNfiATA,  Kg.,  K.  K.,  i>.  mi,  -21,  (.  it;  S.  B.  D,,  I,  |., 

HI,  19,  f.  1S»;  H.  L.  S.,  Sill.  Sp.  T.,  Xo.  4»8. 
"      2.  "  i)ii,ATATA,  W,  S.,  M.  B.  D,,   I,  |i.  «0,   )«,  f.  191;  Kah., 

E.  D.,  p.  24>^. 
"  i.iNKAKiB,  Khrl).,  8.  B.  I).,  1,  \>.  (10.  l!i,  I.  li»H. 

ANCKitj,  Elirl...  K.  B.,  p.   lo:.,  29,  f.  4;   kii»..,  S.  I).,  p. 
48,  5),  ♦'.   14;  S.  H.  D.,  I,  p.  »(••,   19,  f.  I9<l;    /.  H„ 
4,  f,  4,  ft,  ((. 
"  LKUUMEN,  Ehrb.  iMik.,  39,  ;;,  I.  104;    K.  B,  p    107,29, 

f.  11  ;  M.  J.,  185tS,  PI.  1,  f,  9:  V.  H.,  4,  f.  1 1. 
SAUNA,  W.  S.,  S.  B.  D.,  1,  p.  (10,  19,  f.  188;   V.  H.,  10, 
f.  16. 
"  i'Kul)lJ("rA,  (iriiii.,  \'.  H.,  4,  I'.  12;  pmltalilv  -a  vnrifly 

of  niiwpK. 
"  AMKF8,  Elirli.,  Viir.  Aiiipliict'plwihi,  vide  vtfivrviwvn  f. 

4;  V.  II.,  4,  f.  4,  <1.  7. 

"  UUACI1.1S,  Ehrl).  Mik.,  Hi,  I,  f  4;   17,  2,  f.  If);    17.  I,  f. 

.");  8.  B.  D.,  I.  p.  59,  19,  f.  180;  Abh.,  1870,  2,  l,f.41. 

ACUTA,  W.  8.,  8.  B.  D.,  1,  p.  59,  19,  f.  187,  V.  H.,  4,  f  :t. 

"  Fhokneckntkkon,  Ehrb.  Mik.  :{9.  li,  ('.    105;    .\bh., 

18ti2,  p.  64,  1,  (.  6;  S.   B.   I).,   I,  p.  59,  19,  f.  iMa; 

V.  H..  4,  f.  2.     Fix.  14,  var.   B»ileyi. 

"      U).  Eni'YONKMA  (FACILE,  Rub.  8.  D.,  p.  24.  10,  C.  1  :  Scbm.  At.,  10,  C 

36,  37,  39,  40:   V.  H.,  3,  f.  20.  22. 
"  The  Hanie  under  lower  |M>wer,  in  t^eliilinoiiH  tiibf. 

VENTBicx)8A,    Kg.,  Schin.    At.,    1(»,   ('.  59;    71,  f.    13; 
V.  H.,  3,  f.  15-17. 
•'  CAi-SPlTOeUM,  Kg.,  Rab.  8.  I>.,  p.  24,  7,  f.  5  ;  8.  B.  I>.,  1 1, 

p.  68,  55,  f.  346;   8(hin.  At..  10,  f.  57.  58,  60, .62. 
'•  AuERWALUii,   Rab.  8.  D.,  p.  24,  7.  f.  2.      Pn>bably 

only  a  variety  of  fig.  2(t. 
TRIANGULA TVM,  Kg.,  8chin.  At.,   10,  f.  54;  71,  f.  10. 

Cymbella  gibba  of  Bailey. 
HAKADOXUM,  Kg.,  K.  B.,  p.  82,  22,  f.  I,  Ral>,  8.  D.,  p. 
24,  7,  f.  3;  Schm.  At.,  10,  f.  67,  69. 
,    "  Prostbatom,  RalfB.,  Rab.  8.  D.,  p.  24,  7,  f  1  ;  8.  B.  D. 

II,  p.  68,  64,  f.  345;  8chm.    At.,    10,   «.  64,  66. 
£Tidently  Tarietiet*  of  fig.  23. 


FigH. 

8,  9. 

Fig. 

10. 

1. 

11. 

11 

12-16 

11 

17. 

Figs 

.18, 

19 

FiK. 

20. 

•  < 

21. 

- 

22. 
24. 

I'lutft  \ 


8^*-; 


i 


i.  ! 


I'LATE  IX. 


Viii.    1.  Amimikra  ( oki'k.kkohmis,  Ku.,  K.  H.,  p    lOs,  5,  f.  ;^7,  H.  F-.  S.i 

Lens,  p.  s-2,  No.  r,;-,,  :!,  f.  17;  Sdim.  At.,  26,  ('.  Sd-lS. 
"      2.  "  IIVAF.INA,  Kr.,  p.  lOM,  ;{(»,  f.  IS,  II.  L.  S..  Lens*  p.  74,  No. 

'     24,  2,  f.  2 ;  W.  H.  D.*  I.  p.  I'.i,  2,  f.  2M ;  Scliin.  At.,  2(5, 

t;  52-"io. 
"       ;!.  "  -OSTAIA,  W.  S.,  S.  n.  1).,    I,   p.  20,  :!0,   f.  253;   H.  I..  S., 

Lens,  p.  h:!,  No.  Tm,  3,  f.  2S. 
"      4.  «  i,AKVis.siMA,  <  ires.,  I).  C,  j).  II,  4,  f.  72  ;  H.  1..  S.,  Lens, 

p.  7:5.  \o.  SI,  1,  I.  14;  V.  H.,  I,  f.  l.i. 
"      .").  "  t.iNKoi.ATA,  Khvl..,  Mik.,   i;{,  I,  r.  lit;   Rai..,  S.  I).,  p.  .".fi. 

'.I,  f.  9,  10:  11.  r..  S.,  Lens.  p.  74,  No.  2.S,  1,  f.  22. 
"      (5.  "  OFITRTA.  L.  W.  B.,  H.  .1.  N,  II.,  p.  :?4S,  r.  A    H. ;  H.  L. 

S.,  Lens,  p.  77,  No.  .'vl,  2,  t'.  12. 
"      7.  "  i-i's.A,  A.  .S.,  SfliDi.  At..  27.  I'.  <is. 

"      S.  "  SAI.INA,   W.  S.,  S.  R  I),   I,  p,  If),  ;iO,  f.  2.">1  ;   H.   L.  S.. 

Lens,  p.  S4,  .No.  .'•!>,  8,  I'.  29;  .Slim.  At.,  2«,  I'.  SI. 
"      9.  "  HiNoDKs.  vitr.  interniptH,  tirnn.,  Schin.  At.,  2.'i,  f.  <M. 

"       lit.  "  i-i,F,xuosA,    fJrev. ?   Sclini.    At.,    2.i,    I'.   82;    this    is    not 

(trevilli's  tignre  whinli  see  IM.  112,  f.  12. 
"       II.  "  AIKTATA,  A.  S.,  Sciirn.  At.,  2«,  f.  27-29. 

12.  "  Nova  ('ALKt)ONKA,  (trnn,  .Schm,   At.,  2(i,  f.  16,  24,  (^. 

porceJIu^ .'') 
"      i:'..  "  Ai-F!yis,  W.  S.,  S.  B.  D.,  I,  p.   19,  2,  I'.  27;   K.  B.,  p.  9r), 

IS,   I',  (i.i;   KjT.'s  form  not    VV.  S. ;  near    A.   probos- 

cirliii,  tirejj.,  and  .\.  commntata,  (rrnn. 
'•       14.  "  UKCTANGii.Aiii.s  (Treg,  T.  M.  S.,    Is.'i7,  p.  70,  ."),  29;   II. 

L.  S.,  Lens,  p.  82,  No.  52,:!,  I'.  Li. 
Figs.  15,  Hi.  "  MNKATA,  (M-e«.,  H.  L.  S.,   Lens,   [^1.  :!,  f.  21,  Schm.  At., 

2(),  59. 
Kig.    17.  "  i-iNEATA,  (iret;.,  small  form,  Schm.  At.,  26,  f.  82,  26,  n. 

L.  S.,  Lens,  p.  8,  2,  No.  54,  :^,  f.  21  ;  Schm.  At.,  26,  f. 

59,  82,  86  ;  27,  f.  15. 
"      IS.  "  (iiuBA,  A.  S.,  S(4im.  At.,  :<9,  f.  ;V2. 

"      19.-  "  PROTEUS',  (ireg.,  D.  C;.,  p.  46,  5,  f.  HI  ;  H.  L.  S.,  Lens,  p. 

79,  No.  41,  :i,  f.  1  ;  Schm.  At.,  27,  6:1 
"      20.  "  (JiOANTKA,  (rrnn.,  Sehm.  At.,  27,  f.  46.  67. 

'*      21.  "  roNTRACTA,  (irun.,  Snhm.    At,    25,   f.   .i4,   55,  57,  62. 

,  Prol)Hl)ly    a   var.  of  .\nip.  Janisehii,   A.  S.,  North 

.American? 
"      22.  NAVi(fi,A  Ki,j.XiA,N-,s  W.  S.,  S.  B.  D.,  I,  p.  49,  16,  f.  137;  IXmk.,   B. 

n.,  p.  2:^,  4,  f.  1.     Striae  slioiilrl  he  more  radial  and 

somewhat  flexuOHe,  H.  L.  S. 
Figs.  23,  24.  "  BoiiEAMs,  Kg.,  K.  B.,  p.  96,  28,  f.  68,72;  Schm.  At., 

46,  f.  16,  21  ;   N'.  H.,  6,  f.  34. 
"      25,  26.  "  Cyntkia,  A.  S.,  Schm.  At.,  8,  f.  41 ;  O'M.,  L  D.,  p.  375, 

33,  f.  10. 


I'l.ito  IX. 


Fig.   -27. 


V^H. 

2», 

30 

a 

M. 

a 

'A'l 

it 

:i:{. 

It 

34. 

(( 

;ir.. 

3(',. 


FiRH.  38, 

39. 

Ki«.   40. 

"      41. 

"      42. 

"      43. 

Kixs,  44, 

4.5 

FiR.   4«. 


•  UK.UMsiiCTA,  Grim.,  CI ,  I88<t,  p.  42,  (iV.  poh/aticlu,  BcLiU. 

At.,  3.  f.  27.) 
rotYSTICTA,  (4rpv.,  Calif.,  p.  2H,  4,  !'.  12;  Sohm.   At.,  ?,, 

f.  26. 
TKRM18,  A.  S.,  Schm.  At.,  45,  T.  67,  71  ;  V.  H.,  6,  f.  12, 

13;  probably  a  v;ir.  of  N.  niCTolepta. 
TKLi.iciiLO.sA,  Hiise.,  V.  H.,  14,  f.  32;  Fruatulia  pdlicu- 

;o«a,  Griin.,  1860,  5,  f.  18. 
LAJfCKOi.ATA,    K*?.,    K.    B.,   ji.  94,  28,  f.  38;  30,  f.  48, 

Sohm.  At.,  47,  f.  49;  V.  H.,  8,  f.  16,  17 ;  Kg.'s  form 

not  VV.  S.'s, 
Gi.oBicEPS,    Raifs.,    V.   H.,    A.,   f.  13.     P'iRiire   perhaps 

rather  large  for  an  average  xize. 
RHYScocKPHALA,  Kg.,  K.  B.,  p.  152.  30,  f.  35;  .«*.  B.  D., 

1,  p.  47,  16,  f.  132.     Sohm.  At.,  47,  f.  28-32. 
i'i,A('KNTnj,A,  Ehrb.,  K.  B.,  p.  94,  28,  f.  57,  Lewis,  W. 

M.  v.,  2,  f.  7.     .\  somewluit  dubious  form;  Ehrb., 

Kff.  and  Lewis  do  not  quite  agree. 
RECTANCJUL.vrA,  Greg.,  D.  C,  p.  7,  1,  f.  7 ;  Donk.,  B.  D., 

p.  66,  10,  f.  5;  V.  H.,  A.  S.,  f.  7. 
EU>NGAT\,  Grun  ,   Schm.,  .\t.,   50,  f.   27-29,   merely  a 

form  of  N.  viridis. 
iiECURRENS,  Kg.,  K.  B.,  p.  <.n>,  E.  Mile.,  11,  f.  28 ;  Schm. 

At.,  45,  f.  29,  30. 
NtiMMULABiA;  Grev.,  Cal.,  p.  29,  4,  f.  ♦>;  Schm.   At,,  70, 

f.  37,  38. 
PAPULA,  Grun.,  Schm.  At.,  7,  f.  45-48. 
i.ANCEOLATA,    Kg.     Same  as   fig.  32.     Kg.'s  form  has 

<livergent  striae  ;  W.  S,  has  striae  parallel. 
NlTMMUi.ARiA,  Gfcv.,  same  as  fig.  40,  larger  form. 
SOULPTA,  Ehrb ,  Milt.,  10,  1,  f.  5,  a.  b.     Schm.  At.,  49,  f. 

46-48;  V.  H.,  12,  f.  1. 
BoHEMiCA,  Ehrb.,  Mik.,   10,  1,  f.  4;  Schm.  At.,  49,  f. 

43-45. 


;a. 


,i/A,W')   . 


?'        i.r,     (i 


-Jir  ^^''r.At-ri 


[^-■■M    -.  =  i.    --.1'. 


PLATii!  X. 

Flyure*  uuttfnlltfHl  ^ttu  UIauiaUm. 


t"ig.    1.  Navtcoi.a  Ay«LicA,   Ralfr.,  Doiik  ,  B.  D.,  p.  Xr,  o,  I,  Jl  ;  O'M.,  K 

D.,  p.  414,  24,  f.  24  ;  V.  H.,  8,  f.  29,  HO: 
"      2.  '•  <,ASTRUM,  Ksr.,  K.  B.,  p.  94,  28,  f.  56 ;  Uwih  W.  M.  D^ 

p.  n,  2.  f.  17;  Donk.,  B.  D.,  22,  «,  f.  10;  B.  1.  N.  H. 
p.  336,  f.  M. 
"  PARVA,  Ehrl).,  (Stauroptera  parva,  Ehrh.)  V.  H.,  «,  f.  i".. 

"  DI8CREPAN9,  A.  8.,  Hohni.  At.,  8,  f.  8 

PARCA,  A.  S.,  Snhm.  At.,  8,  f.  20-22. 
"  PAi.PKBRAMs,  Breb.,  S.  B.  P.,  1,  p.  50,  31,  f.  27",;   V.  H., 

11,  f.  9. 

"  RRKVis,  <Treg..  var.  (Tref».'H  typical  forni  ha*  prodiH'ed 

ends:  V.  H.,  11,  f.  18,  19;  I>«.nk.  B.  D.,  p.  19,  3,  (.4. 

'  <(UtNQUKNODi«,  Gnin.,  (a  var.  of  mnticHj  1860,  p.  522,  1, 

f.  33;  18«3,  p.  149,  13,  f.  9;  V.  H.,  10,  f.  21. 

KroENiA,  A.  S.,  Schm.  At..  8,  f,  44,  46 ;  O'M.  (.  I).,  p.  395, 

33,  f.  17. 
LiTTORALls,  viir.  Donk.  B.  I).,  p.  ">,  I,  t".  2;  fk'hm.  .At.,  8. 

f.  24. 
r.iTTORALis,  Sohm.  At.,  7,  f.  12.  V.  H. ;  B.  S.,  f.  25. 
CRYPTOCEPHALA,  Kg.,  K.  B..  p.  95,  3,  f.  20,  26;  Rab.  S. 
b.,  6,  f.  71;  V.  H.,  8,  f.  16. 
'•  r»irroNEiFORMis,  Gre^.,  M.  J.,  1856,  p   6,  1,  f.  22,  S.  B. 

D..  II,  p.  92. 
SKRIAN8.  fmnHviata,  Breh.,  K.  B.,  p.  92,  30,  f.  23 ;  28,  1". 
43;  Rab.,  S.  D.,  p.  38,  6,  f.  61  ;  S.  B.  I).,  I,  p.  47,  16, 
f.  1.30. 
PirsiLLA,  W.  H.;  S.  B.  D.,  I;  p.  62,  17,  f.  145;  V.  H.,  11, 
f.  17. 
'•  viRiDULA,  var.  minor  Kg.,  K.  B.,  p.  91,  30,  f.  47;  4,  f. 

10,  15;  Sohm.  At.,  47,  f.  48,  ,53,  56. 
'  RHYNCOCEPHALA,  Kg.,  K.  B.,  p.  52,  30,  f.  35.     S.  B.  D., 

I,  p.  47,  16,  f.  132;  Schm.  At.,  47,  i.  28,  29. 
aRACTMS,  (var.  SileHiaca)  Ehrh.,  Mi<.,  39,  3,  f  85;  16,  3, 

f.  29;  16,  1,  f.  14,  a.b.,  etfi. 
(iRAriMH,  K.  B..  p.  91.  3,  f.  48;  30,  f,  67;  Rah.,  S.  H., 
p.  .38,  6.  f.  64. 
"  sE.nTNrTA,  A.S.,  Schm.  At.,  67,  f.,  50;  70,  f.  56,  66. 

TKFLEXA,  Ralfr.,  Schm.  At ,  46.  f.  69-72. 
"  Hrkbis.'v^nii,  Kg..  (Pinn.  Rtanroneiformis,  W.  S. )  K.  B., 

p.  93,  3,  (.  49;  30,  i'.  39;  Schm.  At.,  44,  f.  16. 
"      •_':.  "  nt-niA,  Ehrh.,  Mik:,  39,  2,  f.  82;  K.   B.  96,  28,  f.  61  : 

Schm.  .\t.,  49,f.  11,24. 
"      2K,  "  TABELLARIA  leptogongyh.,  Grnn.,  Ehrh.,  K.  B.,  p.  98,  28, 

f.  79,  80;  Sclim.  At.,  43.  o. 
FigH.,  29,  80,  "  Bacilmtm,  and  var.  Ehrb.,  Mik.,  38a,  20,  f.  3,  29,  3, 1. 

81  ;  27,  3,  f.  8.    Sill.  Jonr.,  May,  1861,  f.  4t),  K.  B,, 
p.  96,  28,  f.  69 ;  B.  I.  N.  H.,  p.  336.  f.  20. 


H 

3. 

U 

4. 

II 

5. 

Figs 

6,  It;. 

4( 

7,  17. 

t( 

8,9. 

Fig. 

io. 

f( 

11. 

U 

12. 

(i 

13. 

ti 

14. 

l< 

16. 

Figs. 

18,  19. 

Fie. 

20. 

I< 

21. 

U 

22. 

it 

23, 

U 

24. 

(t 

26. 

tl 

26. 

I'lalr  X. 


I 


t 


I 


Fig.  31. 


82. 

« 

38. 

C( 

34. 

l< 

86. 

l< 

36. 

i( 

37. 

<. 

38. 


K 

39. 

i< 

II 

40. 

(1 

11 

41. 

II 

Figs 

.42,44. 

II 

Fig. 

43. 

ii 

11 

45. 

II 

II 

46. 

II 

11 

47. 

II 

II 

48. 

II 

<i 

49. 

II 

It 

50. 

II 

II 

51. 

II 

INTERRYPTA,  Bail.,  K.  fi.,  p.  100,  29,  f.  93 ;  Schm.  At., 

12,  I  10,  11 ;  Sill.  Jour.,  1842,  2,  f.  18. 
INTERRUPTA,  W.  S.,  var.  bicapitata,  Lagerst.,  V.  H.,  6,  f.  9. 
CRABRO,  Ehrb.,  var.,  M.  J.,  1847,  p.  8,  3,  f.  11,  Donk.,  B. 

D.,  46,  7,  f.  1 :  Schm.  At.,  69,  f.  1. 
ASQVSfiA,  Qrun.,  1860,  p.  528,  3,  f.  19;  V.  H.,  7,  f.  17. 
oiBBERULA,    Tar.  Bubinilata,  Kg.,  K.  B.,  p.  101,  3,  f.  50i 

Rab.,  S.  D..  f.  p.  45,  6,  f.  30. 
ocoLATA,  Breb.,  I. «.  C,  1870,  p.  37. 1,  f.  5,  V.  H.,  9,  f.  10. 
SUBORBicuLARis,  Baifs.,  Prit.,  p.  898,  Donk.,  B.  D.,  p,  8. 

1,  f.  9 ;  Schm.  At.,  1,  f.  3-5.     A  var.  of  N.  Smithii. 
Gi^BERCLA.  Kg.,  CM ,  I.  D.  P.,  368.     This  the  type 

form,  fig.  35  a  variety. 
LACUNARUM,  Grun.,  V.  H.,  12,  f.  31. 
EXILI8,  Kg.,  K.  B.,  p.  95.  4,  f,  6,  Rab.,  8.  D.,  p.  39, 6,  f.  84. 
NDMMULARIA,  var.  of  Suborbicularis,  Grev.,  Cal.,  p.  29, 

p.  4,  f.  6 ;  Schm.  At.,  70,  f.  37,  38. 
NUMMDLARIA,  (typical  form)  Schm.  At.,  70,  f.  37,  SO. 
Saogkri,  De'/mez.,  V.  H.,  14,  f.  8a,  (16b,  var.) 
CARDiMALis,  Ehrb.,  Schm.  At.,  44,  f.  1,  2,  0,M.  I.  D.,  p. 

341,  30,  f.  2;  V.  H.,  a  fig.  5.  Prit.  p.  896;  12,  f.  72.' 
OEMMATA,  var.  Spectabile,  Grun.,  Schm.  At.,  8,  f.  38. 
BoMBUS,  var.  Schm.  At.;  69,  f.    28,  29;  Donk.  B.  D., 

p.  50,  1,  f:  7. 
BoMBCS,  var.  Kiintzingii,  Schm.  At.,  13,  f.  22,  24. 
NOTABiLis,  Grev:,  T.  M.  S.,  1863,  p.  18,  1,  f.  9,  Schm. 

At.,  8,  f.  46-52. 
BoMBUS,  var.  interrupta.  Bail.,  K.  B.,  p.  100,  29,  f.  93 ; 

Schm.  At.,  12,  f.  10,  11 ,  Sill.  J.,  1842,  2,  f.  18. 
Americana,  Ehrb.,  Mik.,  2,  f.  16 ;  42,  f.  16 ;  O'M.  I.  D., 

p.  351,  30,  f.  30 ;  V.  H.,  12,  f.  37. 


I 


Fig.    1. 


2. 


8. 


PLATI<:  X 


Flgui'i's  inagiiitli'd  .KMI  (llann-liTH. 


I"  I 


<( 

9. 

10. 

11. 

12, 

l.S 

FiK. 

14. 

(1 

15. 

<r 

16. 

'' 

17. 

Figs 

I'N 

1!) 

Xavh'I'I.a  Sii.i.iM.VNoiu  M,  Kliili.  M il"' .,'_','_',  I'.  i;{;    Lewis  W.,  M. 

D,.  p.  11,  2,  r.  h;   W.  .1*1(1  ('.,  1,  |).  (1,  •_',  I'.  -J,  Crime 

I'oiid,  Msiss.,  clc 
"  i'i:KMA(iMA,  var.  ICsox,  Kjr.,  Kdwanis,  M.   J.,   i8(J0,  p. 

129;  Lewis  N.  and   11.,  p.  12.  2,  f.  11:  H.  L.  S.  T,, 

No.  ;10S,  White  Mt. 
"  AXfJKi.oHi'.M.  viir.  f.xcavalM,  ('■   vi  ,  N.  L.  K.  D,  p.  S,  2, 

r.  20,  S    Monica. . 
"  I'<)\vi;i,|,ii,  Lewi-,  N.  and   R  Sp.,  \>.  7,  2.  ('.  2.     The  ly()- 

ical  fiiriii  is  Hoinewiiat  iiu'iiivcd ;   W'iiiie  Mountain. 
'•  Uki:kn'1,anuk'A,  Cleve.,  N.  L.  I\.  D  ,  p.  7,  1,  I".  \:i,  Davis 

Strait. 
"  ('KUtiATA,  Chvc,  N.  L.  K.  I).,  p.  «,  1,  r.  II. 

'■  I'lAiRiDANA,  Cleve.,   N.  L.  K.   D.,  p.  tl,  1,  f.   10,  near  N. 

fliiiiiiiie-isis  (irnri 
•«  Fi;m:(iKii!i    (kve  ,  N.  L.  K.  I).,  p.  9,  2,  f.  21.     Perhaps 

a  var.  ot'  N.  .Vnulica,  Rail's. 
''  I'ENSAcoi.A,  (.  leve.,  N.  L.  K.  I).,  p.  M,  !!,  f.  .">'.•. 

MAKoiNi'LATA,  t.ieve,  N.  L.  K.  !).,  II.  ;^,  r.  29. 
"  I  i.UTHKNsis   var.  inine.sta,  (JreK  ,  1).  ('.,  p.  J'-,  1,  t'.  2,  I'rit.i 

p.  9(19,  7,  f.  r.',. 
(JKMINA.   Khrh.,   Ber.,  1S40,  p.  19;  Seiitii.  .\t.,  ]?,,  f.  4-9. 

May  he  a  var.  of  Hoinhiis,  Richmond,  \'a. 
"  iNTKKi'o.siiA,   Le*is,  VV.  M.   I>.,  p.    1,S,  2,  f.  19;  Sni.  Sp. 

T..  No.  25.S.     May  he  a  var.  of  N.  Hrina. 
"  OitEtio.vicA,   Kg.,   K.  S.  .\.,  p.  71  ;   Prit.,  p.  907;  .Ahii., 

1«70,  2,  1,  f.  10,  11. 
"  MAKOINATA,   Lewis,  {MoHiHjfoia)   Lewis,  X.  and  R.  i^p., 

p.  2(),  2,  f   1  ;   Delaware  River. 
'  roLVONcA,    hreh.,  Ral).,  S.    I).,  p.  4!,   J.,ewi.s,   N.  and  R. 

Sp.,  2,  f.  7;  V.  H.   .-v.,  f.  14. 
"  DiiuiYNcHUS   Eiiri).  Mik.,  .'i"),  .\.,  14,  f.  ;i.  Kah.,  S.  D.    p. 

40,  (i,  f.  4S,  Donk.,  H.  D.,  p.  29,  5,  f.  ;{. 


S     ! 


I 'Into  XI 


■if 


.11 


11 


I 


"      2. 
"      3. 

"      4. 


"      Q- 


"      S. 


PLATE  Xn. 

KiKures  inaKnltlecl  TiOO  illuinetcra. 


FiR.   1.  Navicui.a  tahkllakia,  Kk;  K.  B.,  98,  28,  f.  79,  80;  Prit.,  p.  896, 

12,  f.  21;  Hcliin.  At.,  43,  f.  4. 
•'  SUBNIIDA,  var.  A.  H.,  Sclmi.  At,,  12,  f.  44. 

"  DiPLOSTicHA,  (Jnin,  Sdiiii.  At.,   13,   f.  25-30,  (iiilf  of 

\Ji'.xi('o,  etc. 
"  INTERRUITA,  Bnil.,  viir.  Microstiiurnin,  O'M.,  I.  I),   p. 

354,  30,  {.  36. 
«  Hi'i-KNDIDA,  (iren,  viir.  T.  M.  S.,  1866,  p.  44,  5.  f.  14; 

Sohni.  At.,  12,  r.  31-35;   X^,  f.  31-34;  (59,  f.  22,  Gulf 

of  MexicM. 
"  KNTOMoN,  Kg.,  K.  H.,  1).  100,  28,  f.  74,  Honk.,  B.  D..  p. 

49,  7,  f.  5;  Sclim.  At.,  13,  f.  43-46,  Ciinip.  Buy. 
"  MUscAKFoKMis,  (triin.,  Sclim.  At.,  13,  f.  42,47;  v.ir.  of 

(iidvniu,  Ciuniifiieliy  Buy. 
"  (IKMINA,  Khrl..,   Her.,   1M40,  p.   19;  Schtii.   At.,   13,  f .  4 ; 

(ii  111  peachy  Buy. 
"  SAi-VA,  A.  H.,  Hcliin.  At.,  46,  f.  23,  Cunip.  Bay. 

VACiLi.ANS,  A.  S.,  Helim.  At.,  8,  f.  61  ;  8,  f.  42,  43,  52, 

V.  H.,  9,  f.  9 ;   Camp.  Bay. 
"  Smithii,   Brel)..  S.   B.  D,  II,  p.  92,  Sdini.  At.,  7,   19. 

Kre(iueiit  ijutrine. 
"  DiDYMA,  var.  Kk.,  K.  B.,  p.  100,  4,  f.  7;  S.  B    D.,  1  p. 

53,  17,  f.  154;  Sdmi.  At.,  13,  f.  1-3;  Leiin,  Vol.  II, 
p.  235,  4,  f.  8. 

"  HKK't'i.ATA,  (Jriin  ,  Sclim.,  At,,  70,  f.  9,  10.    Camp.  Buy. 

"  muRiioMBUH,  A.  S.,  Sehiii.  At.,  11,  f.  21,  22;  69,  f.  9; 

(Jnlf  of  Mexico,  etc. 
"  CAMPYi.ODiscus,  (iruti.,  Sclim.  At.,  8,  f.  9,  10,  12,  70,  f. 

64,  65.    Camp.  Bay. 
"  cuHPiDATA,  Kg.,  K.  B.,  p.  94,  3,  f,  24,  37  ;  Rab.,  8.  D.,  p. 

37,  5,  f.  16  ;  S.  B.  D.,  16,  f.  131. 
"  BOMBOIDKS,  A.  S.,  var.  Schm.  At.,  13,  f.  36-40;  V.  H. 

B.,  f.  19.    Camp.  Bay. 
"  CARDINALI8,  Ehrb.,  var.     Not  as  large  as  fig.  45,  PI.  9, 

Schm.  At,44,  f.  1,2. 
"  ScHMiDTiANA,  Grun.,  Schm.  At.,  48,  f.   19,  20,  Camp. 

Bay. 
PEREGBiNA,  Kg.,  K.  B.,  p.  97,  28,  f.  62 ;  Schm.  At.,  47, 

f.  57-60;  O'M.,  I.  D.,  p.  408,  34  f.  6;  V.  H.,  7,  f.  2, 

Utah,  etc. 
"  LONOA,  Ralfs.,  Schm.  At.,  47,  f.  6,  8,  10;  Donk.,  B.  D.,  p. 

54,  8,  f.  3,  Camf).  Bay. 
"          FUSCA,  Ralfs.,  Schm.  At.,  7,  f.  2-4,  7-9;  8,  f.  33-37;  V. 

H.  B..  f.  2,  marine, 

'  susPECTA,  A.  S.,  Schm.  At.,  11,  f.  12,  13,  25-27.    Gulf  of 

Mexico,  etc. 

"  scoLioPLEBRA,  A.  S.,  Schm.  At.,  46,  f.  63. 

"  LACRiMANS,  A.  8.,  Schm.  At.,  12,  f.  59,  60,  61,  Cam- 

peachy  Bay,  Gulf  of  Mexico. 


<t 

9. 

II 

10. 

II 

11. 

II 

12. 

II 

13. 

.1 

14. 

1 

15. 

11 

16. 

II 

17. 

(1 . 

18. 

Figs 

.  19,  21 

<i 

20,  22 

i< 

23,  24. 

Fig. 

25. 

1. 

26. 

II 

27. 

11 

28. 

I'lul..  Xll 


; 


II 


I 


FiR. 

1. 

Figs 

2-4. 

Fig 

3. 

It 

5. 

II 

6. 

Figs 

7,8. 

II 

9,  10. 

I'LATK  xrri. 

FlRures  maKnlfli'd  -WIO  diainoters. 


All  frcsli  wiiter  specie*. 

Navicui.a  viKiDis,  Kg.,  K.  H,  |.    97,  4,  f.  18;  liO,  f.  12;  Prit.,  j.. 

!)o7,  s), !'.  i:i:{,-i3«. 

NOBius,   Kiirli.  Mik.,  11,  )'.  2411.1..,   Donk.,   B.  D.,  p.  68, 

1 1,  f.  1  ;  mie  Hg.  t>,  hclow. 
MAJOR,  Kg.,  K.  B.,  p.  97,  4,  f.  19,  2<);  Frit.,  p.  896,  7,  f. 

66;   12.  f.  16,  31 ;  16,  f.  1-6;  Schm.  At.,  42,  f.  8-10, 

Sm.  Hp.  T.,  No.  294. 
'•  oiGAS,  Kg.,  Schm.  .At.,  42,  f.  1,  4 ;  K.  B.,  p.  98. 

"  N0BIU8,  Ehrh.,  (K.H,  p.  98,  4,  f.  24;  Mik.,  16,  A.,  f.  13; 

15  B.  (•.7;  Schm.  At.,  43,  f.  13. 
"  viRiDi.*,  Kif.,  same  as  fig,  1,  uliove.     One  of  our  most 

coniinoM  and  widely  (liKtrilMileii  fresh  water  diatoms; 

very  variable  in  size. 
"  VIRIDI.'*,  front  views  of  frustules  m  often  seen  in  pairs, 

or  sometimes  four  or  more  united. 


I'l.ito  Xill. 


! : 

1 ,, 

ip 


Figs.  1.2. 


3,4. 


hig.  5. 

•• 

"     6. 

« 

"     7. 

II 

"      8. 

II 

Figs.  9,  10. 

a 

Fig.   11 

ic 

"      12. 

•1 

Figp.  13,  14. 

Fig.   15. 

.( 

"      16. 

II 

"      17. 

II 

Figs.  18,  19. 

it 

Fig.  20. 

<( 

^ 

"      21. 

It 

'      22. 

II 

"      23. 

l( 

"      24. 

II 

Figs.  25^  26. 

li 

J^'ig.   27. 

" 

Figs.  28,  29,  30. 

It 

PLATE  XIV. 

KiRures  magnlfled  riOO  diamotors. 


Xavicula  affinis,  Ehrb.  Mik.,  .39,  3,  f.  79,  etc. ;  K.  B.,  ]>.  70, 
28,  f.  65 ;  30,  f.  4o,  46 ;   Rab.,  S.  [).,  p.  40,  ti,  f.  58 ; 

5.  B.  D.,  1,  p.  50,  16,  f.  143. 

"  amphirhyN(;hus,  Kiirb.,  K.  B.,  p.  9o,  4,  f.  13;  2,  f. 

11;  S.  H.  I).,  I,  p.  51,  16,  (•  142;  Prit.,  p.  901,  12, 

f.  6. 
serratula,  (}nin.,  Suhni.   At.,  7,    f.   42,   43.     Cam- 

peaciiy  Bay. 
KUDO.xiA,  O'.M.,  I.  D.,  p.  397,  .33.  f.  19;  Sc-hni.  At.,  H, 

f.  39,  40;  70,  f.  71,  Monterev. 
MARINA,  Ralfs.,  Donk.,  B.  D.,  p.,  19,  3,  f.  5,  .Scbni.  .\l., 

6,  f.  9,  Roxbury,  Mass. 
NiTESCENS,  Ralfs.,  Prit.   p.  808;  Donk.,  R.  I).,  p.  S,  1. 

f.  7  ;  Sehm.  At.,  7.  f.  37    11,  sin  'Her  form. 
PENNATA,  N.  distem,  var.  A.  S.,  S;'liiii.  At.,  4S,  f.  41-4;!. 
FiscHERi,   A.  S.,  (\fucul(Ua,   Kdwanls),  Sehm.    \i  ,  fl, 

f.  38,  Neuse  River. 
Smithii,  Breb.,  S.  B.  1).,  II,  p.  92;  Sehm.  At.,  7,  f.  19, 

Campeachy  Bay. 
Ai'i(;ULATA,  Breb.,  Lewis.  W.  M.  D.,  2,  T.  7  ;  Scbm.  .\t., 

4(),  f.  56,  S8,  a  smaller  form. 
EXCAVATA,  Grev.,  T.  M.  S.    1806,  p.   130,   12,  f.   15; 

Soliiu.  At.,  3,  f.  22-25. 
Pelagi,  A.  S.,  Hchm.  .'\t.,  7,  f.  25,  26  ;  Cami)eaehy  Bay. 
Calikornica,  (irev  ,  Cal.,  p.  29,  4,  *  5,  Sclim.  At.,  3. 

f.  1.5,  16. 
eu.utka.  Kg.,  K.  B.,  p.  98,  30,  f.  55;  Sehm.  At.,  7, 

f.  27-32;  54,55;  V.  H.,  10,  f.  10. 
Undetermined,  A.  S.,  Sehm.  .\t.,  6,  f.  29,  from  tiiilf  of 

Mexico,  near  small  form  of  N.  Brasiliensis,  tig.  21. 
Bkasiuen.'!1S,  Grun.,  1863,  p.  152,  14,  f.  10  ;  Sehm.  At. 

6,  f.  19,  20,  Campeachy  Bay. 
NiTESCEN.s,  Ralfs.,  larger  form,  comp.  Hg.  8  above. 
MARINA,  allied  to  N.  imiculata,  comp.  fig.  7  above. 
Calikornica,  var.  Camp.  Bay,  Grev.,  Sehm.  .\t.,3,  f.  24. 
IMPRESSA,  Grun.,  Sehm.  At.,  6,  f.  17,  18,  Camp.  Bay. 
EXCAVATA,  Grev.  comp.  fig.  15  above.  Camp.  bank. 
Hennkdvi,  var.  W.  S.,  S.  B.  D.,  II,  p.  93 ;  T.  M.  S., 

1856,  p.  40,  5,  f.  3;  Frit.,  p.  898,  7,  f.  69;  Sehm. 

3,  f.  3-5;  3,  f.  17,  18;    Camp.  Day,  etc. 


{ 


m 


.It  i 


". 


Fig. 

1. 

<( 

2. 

<i 

3. 

(1 

4. 

>< 

5. 

(( 

6. 

K 

7. 

« 

8. 

l( 

9. 

10. 


PLATE  XV. 

Figures  magnified  dUO  diameters. 


"    11. 

(1 

"      12. 

(1 

"      13, 

'i 

"      14. 

t( 

"      15. 

n 

Figs.  16,  18. 

i 

Fig.  17. 

II 

"     19. 

ll 

"     20. 

II 

Navicola  lacrimans,  a.  S.,  Schm.  At.,  12,  f.  59,  «0,  61,  Gulf  of 
Mexico. 
"  MULTIC08TATA,  Gruu.,  1860,  p.  524,  1,  f.  13;  Schm.  \t., 

11,  f.  14-20,  Camp.  Bay. 
"  coABCTATA,  A.  S,,  Schm.  At.,  11,  f.  30-32;   69,  f.  11, 

Camp.  Bay. 
"  EXEMTA,  A.  S.,  Schm.  At.,  11,  f,  28,  29;  69,  f.  13,  40, 

Camp.  Ray. 
"  PAND0RA,  Breb.,  D.  C,  p.  15,  f.  4,  T.  M.  S.,  1856,  p.  43. 

0,  f.  11,  Schm.  At.,  11,  f.  1,2,  4,  8,  9,  [N.  crabro  var.) 
Gulf  of  Mexico. 
"  PRI8CA,  A.  S.,  Schm.  At.,  12,  f.  67-70,  Richmond,  Va. 

"  CRABKO,  Kg.,  S.  B.  D.,  11,  p.  94;  M.  J.,  1857,  p.  8,  3,  f. 

U;  Schm.  At.,  69,  f.  1.   Santa  Monica. 
"  GiKBELii,  A.  8.,  Schm.  At.,  12,  f.  73,  Camp.  Bay, 

"  CRABRONiFORMis,  Grun.,  Schm.  At.,  11,  f.  24;  Gulf  of 

Mexico. 
"  PUELLA,  A.  8.,  Schm.  At.,  12,  f.  13-15;   69,  f.  25,  15, 

California 
COARCTATA,  A.  S.,  comp.  Sg.  3  above. 
CONFEf'TA  A.  S.,  Schm.  At.,  12,  f.  46,  Camp.  Bay. 
PRiscA,  A.  S., ;  .me  as  fig.  6,  above. 
8PLENDIDA,  va/.  Greg.,  T.  M.  S.,  1856,  p.  44,  5,  f.  14, 
Schm.  At.,  12,  f.  31-35;  13,  f.  31-34  ;  69,  f.  22,  Gulf 
of  Mexico,  etc. 
DtMTA,  A.  8.,  Schm.  At.,  69,  f.  34,  Santa  Monica. 
PUELLA,  A.  S.,  same  species  :is  fig,  10,  al)ove. 
DoNKiNU,  A.  S,  Schm.  At.,  12,  f.  63,  64,  ('amp  bank. 
CHER80NEN8I8,  Grun.,  Schm.  At.,  12,  f.  40)  flW,  f.  21. 
OBNATA,  A.  S.,  Schm.  Ai ,  69,  f  5,  Mi-uteruy. 


t 


\ 


I'lHle  XV 


I: 


ii    I 


'•    a. 


Fif,'.   1. 


"  s. 

"  9. 

"  10. 

"  11. 

"  12. 

"  18. 

"  14. 

"  1"). 

"  Hi. 

"  17. 

"  18. 

"  19 


a 

22. 

11 

2H. 

a 

2-1. 

a 

2o. 

(( 

26. 

it 

27. 

PLATE  XVr. 


Pijjiiros  mngiiitii'd  "lOii  (liniiii't(>fs. 

Navioi'L.\  Cv\lik()Hnica,  viir.  (hw.,  Ciil.,  \i.  29,  4,  !'.  ■'),  Si'liin.  At., 
'A,  f.  1"),  1(),  ('amp.  biink. 
"  lltRORATA,  (irev.,  (ill.,  p.  '17,  4,  f.  1,  Schiii.  At.,  2,  f   19, 

22,  2.S.  (iiilf  of  Mexico. 
"  si'KCTABiLis,  (Jroi;.,   D.  ('.,  p.  SIS,  1.  f.  10;  Donk.,   B.  0., 

p.  12,  2.  f.  .');  Sciwn.  At.,  :'.,  I".  20  21,  29. 
"  i.YRA,  var.  rei'ta,   Ehrlt.  AnuT.,   1,  I,  f.  9;   K.  I'.,  p.  94, 

2S,  f.  .').")•.    F-lal.,  S.  [).,  o,  r.   lo:  Sclmi.  At.,  2,  t.   Is, 
2,  f.  24,  25,  82;  ;■!,  f.   11,  12,  ,1    M    S..  187^,  p  .-)09, 
44,  i'.  1,  (in\f  ol    M.'.xi<o. 
I<;.V>I'I.,  .A.  S.,  Sclim.  At  ,  2,  f.  IS   Camp.  hank. 
''  i,YE!A,  Tvp.,  Camp.  I):ii)k,  Schm.  At..  2,  f.   Ki,  comp.  titrs. 

4,  9,  14.     Krr'i|inni. 
"  (■(..    >KI{I,   Halfs..   i'lil  ,  p.  H9S,  Scliin.  At.,  2,  t.  12,  (amp. 

Bay. 
"  KOHKHTSIANA,  (irev.,  S,  I'.  I).,  I'l.;{,  ..";  Scluii.  .Vl.,  2,  r.7. 

"  I-YUA,  var.  (lilatata.  A.  S.,  Sclin).  .\t.,  2,  f.  2('),  romp.  Ii)j;s.  4, 

(I,  14,  (iiiU'of  Mexico. 
'"         DisTKNTA,  A.  S.,  Sciiiim.,  18(17,  p.  'i-.  2,  f  ■".;', ,  Sciim.  At., 

2,  f.  14,  ( '.imp.  Iiank. 
"  DIFFUSA,  .\..-l.,  Schm.    \t.,  2,  f.  2S.  Mexico. 

I'YciMAEA,  K^.,  S.  H.  I).,  1!,  p.  91,  Sc}>:r».    u  ,  '''),  (  (5,  7, 

Camp.  liay. 
FOKcii'ATA,  (irev,  -M   ,].,  1859,  p.  SH,  (>,  ..  i";  .Schm.  At., 
70,  i\  17;  V.  H.,  10,  f.  ;3,  N.  vSmithii  var.? 
"  i.VKA,    Ehrb,    siilityjiical,    Schm.    At.,    2,    f.    82,    Xeiise 

Kiver,  coiiip.  tigs.  4,  (i,  9,  i-t. 
'  t'AiUNiJ'KKA,    (rrui).,    Schm.   .\i ,    2,   f.    1,   2;    70,  1".   42, 

Camp.  Ha\. 
Ac'U.MiN.VPA,  Kails.,  i'rit.,  p.  909;  O'M.  1.  !).,  p.  854,  80, 
f.  41. 
"  IBKORATA,  (irev..  ("al.,  p.  27,  4,  f.  I,  Schm.  .\t.,  2,  f.  19, 

22,  28,  comp.  lifr.  2,  al)ove. 
"  Ai'PiioxiMATA,  (irev.,  Cal.,  p.  28,  4,  f.  4,  v;ir.  .S'hni.  .\t., 

2,  f.  20,  21,  Camp.  Bay. 
AITS.  Ki.     K.  B,,  i>.  100,  2S,  r.  7K,  Donk.,  B.  D.,  p  48,  7, 
f.  8;  Sclim.   At.,   12,    f.    l(i-25;   Schm.   At.,  69,    41, 
43,  44. 
'  FOK  ;irAT  .,  (irev.,  .omp.  fig;.  18,  ahove. 

iMiTLrEN;*,  A.  S.,  Sciim.  At.,  2.  f.  15,  Camp.  hank. 
.s(iotilLan.s,  a.  S.,  Schm.  At.,  70,  t.  HI,  (lamp.  l)aiik, 
K>    i.M-A,  Kg.,  K.  B.,  p.  99,3,  1.  :'.(>;  Rah.  S   [».  5.  f.  10; 
-i.  B.  D.,  II,  p.  50,  17,  f.  15S 
"  (;a  i.hak,*,  a.,  Schm.  At.,  70,  f.  48;  (Jieve.,  187S.  p.  5. 

Wkisflooii,  a.  S„  Schm.  At .  12,  f.  2(1-32,  var.  12,  f.  80, 
(iulf  of  Mexico. 
"  lAiiA,  var.  siftnata,   A.  S.,  Selini.   At.,  2,  f.  4,  <iulf  oi 


Mexi 


CO. 


M'THKN.sis,  Uvea.,  I).  C.,  p.  (I,  1,  f.  2,  Prit.,  7,  f.  18,  (inft  - 
of  Mexico. 


Is 


I'h.to.WI. 


i 


1 1, 


11 ) 


:■ 


Fig. 

1. 

i< 

2. 

Figs 

3, 

4 

Fig. 

5. 
6. 

7. 
8. 

Fijis.  9,  10. 

FiR.  11. 

"  12. 

"  l.S. 

"  14. 


(1 

15. 

Figs. 

•6, 

17 

Fig. 

18. 

Figs. 

19, 

20 

Fig 

21. 

U 

22. 

H 

23. 

Figs. 

24, 

25 

PLATE  XVII. 

Figures  magnified  500  dlameiers. 


(1 


Navicula  maculata,  Edwards,  M.  J.,  1860,  p.  129;  Sm.  S.  T.,  Nrt. 

293. 
"  CoDPERir,  Ralls.,  Prlt.,  89H,  Schm.  At.,  2,  f.  12;  (var.  of 

Lyra),  Camp.  Bay,  etc. 
"  PEKMAGMA,  Edwards,  T.  M.  8.,  1866,  p.  127,  12,  f.  18-21, 

Lewis,  N.  and  R.,  p.  12,  2,  f.  11 ;  Florida,  otc. 
"  DARiANA,  A.  S.,  Sclini.  At.,  42,  f.  24,  25,  Neuse  River, 

"  80LA11I8,  Greg,  T.  M.  S.,  1856,  p.  43,  5,  f.  10;  Schm. 

At,  46,  f.  16,  N.  Providence. 
osciTA^'fi,  A.  H.,  Schm.  At.,  6,  f.  41 ;  Monterey. 
FUTn.18,  A.  S.,  Schm.  At.,  13,  .".  I?,  18,  69,  f.  .36;  Cali- 
fornia.    Near  a  var.  of  didyma. 
RH0MB0IDE8,  'ilhrb',  K,  B.,  94,  28,  f.  45;  30,  f.  44;  S.  B. 

D.,  I,  p.  46,  16,  f.  129;  Lewis,  W.  M.  D.,  p.  10,  2,  f. 

10,  11 ;  H.  L.  S.,  M.  M.  .L,  1876,  p.  279. 
INDICA,  Grev.,  T.  M.  8.,  1862,  p.  95,  9,  f.  i3;  Schm.  At, 

(var.  1,  3,  f.  ;.! 
HUMEROSA,  Breb.,  S.  B.  D.,  II,  p.  93;  Donk.,  B.  D.,  p. 

18,  r?,  f.  3;  Schm.  At.,  6,  f.  3-5. 
HPHAEROPHORA,  Kg.,  K.  B.,  95,  4,  f.  17,  Rail,  .'<.  D.,  40, 

6,  f.  65;  8.  B.  D,  I,  p.  52,  17,  f.  148. 
GRANULATA,  Breb.,  T.  M.  S.,  1858,  p.  17,  3,  f.  19,  Schm. 

At,6.  f.  15,  16. 
HUMKTIOPV,  ^":h. 
RETUSA,  H.el..,  S.  n,  D.,  II,  p.  92;  Schm.  At.,  46,  f.  45, 

•i6,  Cresweli, 
COMMUTATA,  '. Hin  ,  f^chm.  At.,  45,  f.  22,  25,  35,  (=  N. 

viridis,  "ar.) 
HEMiPTERA,  Kg.,  K.   B.,  30,  f.  11;  Schm.  At.,  43,  f. 

<J6-30,  0'^f .,  I.  D.,  p.  349,  30,  f.  22. 
DKEPHALA,  El. , b,  Mik.,  16,  1.  f.  17 ;  17,  2,  f. 7  ;  S.  B.  D,. 

I,  p.  53,  17,  f.  1C7;  Schm.  At.,  72,  f.  29-33;  44,  f, 
33,  34, 
DUBiA,  Ehrb.  Mik.,  39.  2,  f    82;  K.  «.,  96,  28,  f.  61  ; 

Schm.  At.,  49,  f.  11,  24 
BIN0IDE8,  Ehrb.  Ber.,  1840,  p.  18,  K.  B.,  p.  100,  3,  f.  35, 

Rab.,  8.  D  ,  p.  41,  6,  f.  5  ;  S.  B.  D.,  I,  p  53, 17,  f.  159. 
LATI8SIMA,  Greg.,  T.  M.  S.,  1856,  p.  40,  5,  f.  4,  Prit ,  p. 

903,  7,  f.  70,  Schi.i.  At.,  6,  f.  7,  var.  N.  humeroaa. 


I'lutcXAll 


m 


i 


PLATE  Will. 

KlKiircs  iniiKnlflcH,  M)  rtliimetfirs. 


Fig.  1. 

•'  2. 

"  3. 

"  4. 


I( 

6. 

t( 

7. 

ii 

9. 

u 

10 

Vi 


Navicula  coll'Mnaris,  Elirl).  Mik.,   14,  f.  213;  7,  1,  f.  4;  iSflim. 
At.,  4i»,  f.  1.  New  York,  Miiss. 
"  ex'^;kntkica,  Grnn.,  186(t,  p.  'Ao,  1,1'.  1  ;  Hciiui,  At.,  50, 

f.  0   7,  iiiiirine. 
'•  TfMESCKN.^,  (Jriin.,  Sclirn.  .\t.,  49,  1'.  10;  {N. jinnn  var.) 

Maine. 
iRiDis*,  Ehrb.,  K.  R,  28,  f.  42;  Donk.,  B.  D,  p.  ;«>,  5,  f. 
6  ;  ScliiTi.  At.,  4i»,  f.  2,  (larger  var.  of  .V.  firviaf)  New 
Yf.rk. 
"  DiLATATA,  Eiirli.  .Mik.,  3,  f.  25,  Ral)..  S.  D.,  j».  37,  comp. 

fig.  7,  typicul  form. 
"  coLUMN'Aiiis,  i.kle  tig.  1,  above. 

DIL4TATA,  var.   Ehrb.  Mik,  16,  3,  f.  25:  8,3,  a,,  f.  9, 
Sciini.  .At.,  4!),  f.  H,  9,  Maine,  Mas.s. 
"  Bleisciih,  Jati.  and  Kab.,  p.  9,  2,  f.  10,  Sihni.  At.,  50,  f. 

22,  2'>,  nearly  related  to  N.  excenlricu. 
AMPHlo.iMPHi-.«,   Kiirb.   Mik  ,  (i,  1,  f.  20;  7,  1,  f  16;    K. 
B.,  p.  9;^,  28,  f.  40;  Kab.,  S   D.,  p.  S8,  (5.  f.  47  ;  Si-hm. 
At.,  49,  f.  31-.'54.     Krecjuent,  usually  represented  by 
enmlier  turnis. 


11 


I'h.l..  \\ 


i:  i 


I J 


I' I  ATK  XIX. 


I'iuiiic's  iiiimnllli'cl  Vni  cllmnclfr- 


I'iii.    I.  N  \vii'ri.\  I'miitAitiM-,  A.  S,,  <cliiii.  At.,  •')(•.  f.  Hi,  Cimip.    H;iy. 

'•      2.  "  KoitMcwA,  <lrcK.  T.  M.S.  l,s:)(;,  |. ,.)•_',-),  r.  (i,  Sclmi.   At., 

•lO,  t'.  S    II.     (»nl\  II  v;ir.  ut'  .V.  jiirmmima,   Fl.    L.   S. 

Sjiil   I,Mkc;    \«'ii'<c  Kivcr,  <"li'. 
"      •.',.  "  I'HomtTA,  ;i  var,  W.S.,  S.  I!,  1).  l.p.  r)!,  17, 1.  HI,  i^il., 

|..  !tli-',  7.   r.  M:  Schm.    At.,    !!•,   f  :!7-;'.9,   n(»,  /    t7. 

M;il  illf. 
"      4.  ■'  iiKXAi'i.A,  A    S,  .<iliiii.  Ai..  •")(',  1.  'lO,  Ori'ir,,!). 

"         ").  "  AMIMIKfuMIMMs     l-.lilli.     Mik.ti.   I.  I     '.W  :    7.    I.        (1.,    Rrtl). 

S.  I)..|.  ,SS,t),r.47:  .Sclim.  Al,4i),  r.:il   ;M,  Mniiif.t'tc. 
"      tl.  "  i.iNKAuIs,  tinii!.,  IStIO,  p.  :)4tl.   1,  f.  2,  .Sfhiii.   At.,  ')(»,  I". 

;W;  <t'M.  1.  It.  p.  :Vn,  :5I,  l.  :ii).  tJnif  of  Mt-xio... 
Figs.  7,  8.  "  MoKMONoKiM,  (imn  ,  Scliiii.  .\t  ,  44,  I".  24-2().  Utali. 

FiK.   9.  "  I-IHMA    (var,  siil.iin(liihila,  Kir-,  K.  M.,  p.  i>2,  21,  f.  10,  S. 

•  H.  I).,  HI,  1.  i:{S:  .Scliin.  At.,  4'.t,  f.  :!     14;  var.  Sub- 

undulala,  f.    Ui,  Hudson  River. 
"       10.  "  hi  KM  A,  typical  lorm. 

"       11.  "  KotiMO.SA.    v.ir..  Same   species,  didcrciil   t'orm   as  Fix.  2 

al«>ve,  Utah,  etc. 
"      12.  "  Proditta,  var..    Sclim.    At.,    ")0,    f   4i> ;    Siiy s  fraglick. 

Marine. 
•'      13.  "  Amphikiiynchi's,  Ehrl).,  K.  B..  p.  95,  4.  f.  l.S;  2,  f.   11, 

5.  B    l)„  I,  p,  :>l,  Itl,  f.  142;   Frit.,  p.  901,   12,  f.  (>. 
Fresh-water. 

'•      14.  "  NODOSA,   Khrh.  Mik..  17,  2,  f.  12,   13,  K.   B.,  28.  f.  82; 

Rah.,   S.   0.,  41,  6,  f.    8ti;    .Schni     At.,   45,    5f)-58. 

Fresh-water. 
"      15,  "  PRODUCTA,  var,  nearer  the  typical  form,  fi){.  12,  compare 

refs.,  fix,  3.     Marine. 
"      10-19.  '•  Bhkhipsosii,  Kk  ,  K.  R.,  ;i,  f.  49;  80,  f.  39,  Rab.,  S.  D., 

6,  f.  54;  Schni.  At.,  44,  f.  10-19;  Sin.  Sp.  T.,  No, 
249^  O'M.  I.  D,  p.  350,  30.  f.  24,  Fresb-water. 

"      20,  21 .  "  mvERGEXS,  Ralfs.,  Pi  it.,  p.  890,  Scbm.  At.,  44,  f.  6,  14, 15, 

42.     Freshwater. 
"      22.  "  VAClM.AN.s    A    S.,  Scbm.  At.,   S,  f.  tU,  V.  H.,  9,  f.  9. 

Marine. 
"      23.  "  A.MPHi.snAKN.\.  Boi-K.  Mik.,   10,  1,  f.  7;  7,  2,  f.  5,  etc., 

S.  H.  D.,  1,  p  51,  17,  f.  147;  Donk.  B.  D.  p.  36,  5, 

f.  13.     Small  form.  Fresh  water. 


\1\'. 


il 


i 


iis 


,!»    ,» 


I     I 


IMAGE  EVALUATION 
TEST  TARGET  (MT-3) 


// 


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// 


1.0 


1.1 


tea  12.8    12.5 

«Sf  IS 

£  Iffi   112.0 


IL25  III  1.4 


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1.6 


Hiotografdiic 

^Sderices 

Corporalion 


23  WiST  MAIN  STIliT 

WnSTii.N.Y.  MSM 

(71«)S72-4S03 


"     24, 26. 


"     26. 

"      27. 


"     SO,  31. 


DiUYMA,  Kg ,  K.  B.,  100,  4,  f.  17 ;  8.  B.  D.,  I,  p.  53,  17, 
f.  I.M  ;  Prit.  p.  893,  7,  f.  61 ;  Schm.  At.,  18,  f.  1-8, 
Marine. 

MoBftTA,  A.  8.,  Schm.  At.,  «9,  f.  18, 19.    Freth-water. 

SBPARABU.M,  A.  S.,  Schm.  At.,  11  «.  8,  6,  6,  7,  10,  II. 
Marine. 

PZAWXW,  A.  8.,  Schm.  At,  12,  f.  57,  68.    Marine. 

IHFLATA,  Kg.,  K.  B.,  3,  f  66;  8.  B.  D.,  11,  p.  60,  17,  f 
168,  Sm.  Sp.T.  No.  284.    Fresh-water. 

HrrcHcwKU,  Ehrb.  Mik,  63,  f.  11 ;  33,  12,  f.  24;  Prit., 
p.  8»»,  7, 1"  62;  8cl»m.  At  ,49,  f.  86,  36.  Rather  un- 
UHitnlly  large  form ;  Pennsylrania  waters.  Ordi- 
nMiily  a  smaller  diatom  than  N.  Amphubaena,ii(Sf^. 


'Y 


PLATE  XX. 

FlKUreg  magnified  50U  diametere. 


! 


Fiii-    I.  Navicula    PRKi'KXTA,  Ehrl).,  Gre^.,  D.  C  p.  9,  1,  f.  11 ;  Schm. 

At.,  ;5,  f.  ;W,  M.     Marinf. 
Vx^x.  2,  (IS).  '  siNOULABis,  A.  S.,  Schm.  At.,  43,  f.  30.  a  variety  o( 

aerosphaeria,  Kp.      Fresh-water. 
Fifi;.    '^-  "  MESOLEPTA,  Ehrb.,  var.  undiilata,  Grnn.,  K.  B,   p. 

101,  2S,  f.  73;  Rab.,  8.  D.,  41,6,  f.  7*2;  Schm. 
At.,  4o,  f.  52, .");{,  70.     Fresh-water. 
"      4.  "  ASPKRA,  (Stauroneis),  Kg.,  A.  B.,  20,  f.  12,  Prit.,  9, 

14;  '"''  H.,  10,  f.  13:  Sm.  Sp.T.,  No.  407. 
"      r,.  "  AcciiMiNATA  ?  W.  S.,  tig,  probably  represents  merely 

ii  var.  of  N  viridis.     Fresh-water. 
"      6.  "  HEMJi-iKRA,  Kg.,  var.  macilenta,  Grun.,  K.  B.,  p.  99, 

30,  f.  11;  Grim.,  18<)0,  p.  519,  2,  f.  20;    Schm. 
At.,  43,  f.  26,  2H.     Fresh-water. 
"      7.  "  PBETEXTA,  Ehrb.,  var.  of  tij?.  1.     Marine. 

"      8.  '•  Smithii,  Hreb.,H.  B.  D.,  II,  p.  92;  Schm   At.,  7,  f.  9. 

O'M.,  1.  I).,  p.  382,  32,  f.  8.     Fresh-water. 
Figs.  9.  10,  11.  "  GiBBA,  Kg ,  2«<,  f  70;  Schm.  At.,  45,  f.  45-61,  V.  H., 

A.,  f.  12.     Fresh-water.  ,, 

12,  (17).  "  TABELJ.AKIA,  (Var.  macilcnta),  Kg.,  K.  B.,  98,  28,  f. 

7.  9;    Prit.,  896,  12,  f.  21:  Schm.  At,  43,  f.  4. 
Fresh-waler. 
Fig.    13,  "  MES01.KPTA,  Ehrb.  Mik.,   17,  2,  f.  11;  K.  B.,  101,28 

f.  7.3.     Fresh-wuler. 
Figs.  14,  (16).  '  Mi-aoLEPTA,   var.  Stuuroiieiformis,  Lewis,  (N.  meso- 

tylai.  Ehrb.  Mik.,  10,  1,  f  10;  Rab.,  S.  D.,  p.  41, 
■j,  f.  6;  Schm.  .\l.,  45,  f.  52,  55.     Fresh-water. 
"  MESOJ.EPTA,  Ehrb.,  loinp.  figs.  3,  13,  14,  16. 

"  siNOUi.ARis,  vide  fig.  2. 

OBTUSA,  Ehrb.  Mik.,  2,  3,  f.  7 ;  13,  2,  f.  9,  20,  1,  f.  51, 

etc.,  Abli.,  1870,  2,  1,  f.  37.     Fresh- water. 
SEMEN,   Ehrb.  Mik.,  38,  A.,  20,  f.  2;  39,  3,  f.  88,  89; 
Abh.,  1871,  1,  I).,  f.  2,  3;  Sill.  .J.,  May,  1851,  f. 
48,  49,  .Schm.  At ,  72,  f.  1.     Fresh-water. 
22.  "  ELGlNENSis,  Ralf.,  Prit ,  p.  902,  also  near  dicephala, 

Ehrb    Mik.,  16.  1,  f.  17;  Abh.,  1872,  1,  E,  f.  4; 
K.  B  ,  28,  f.  60,  62.     Fresh-water. 


Kig. 

15. 

U 

18. 

Figs. 

19,  20 

Fig. 

21. 

jl 


I'lul,      X\, 


i  ^ 


platp:  xxt. 

Fijfnn-s  inagnifled  fltHl  diameters. 


Figs. 

Fiir. 

Figs 
Fig. 


I.  2,  .1   Navicl'i.a  DACTYiA's,  Kg..  K.  B..  p.  »H,  2S,  f.  o!»,  Sohm.  At.,  42,  f. 

ti;    \'.  H.,  '),  f.   1.      Kri'sii-water. 

4.  "  ii,\(  TYi.i's,  Kg.,  viir.  siil)gigiis,  A.  S.     Fresh-water. 

.">.  "  TAUKi.i.AHi.v.   Klirli.,  (viir.  transversfl,  11.  var.),  K.  B.,  p. 

9S,  2S,  t.  79,  S(i;   I'rit.,  S9ti,  12,  f.  21,  Sohni.  At.,  43, 

f.  -I.      Fresh  wii' IT,  New  York. 
H,  7.  "  KADiOf^A,   Kg.   K.  b.,  4,  I'.  23;  Soliiu.   \t  ,  47,  f.  50-o2; 

Sill.  Sp.  r.,  N<i.  311.     Fresh-water. 

5.  !l.  "  .vcRosPHAKKiA,  Kg.,  K.  B.,  ■">,  f.  A.,  Sehni.  At.,  43,  f.  16, 

lil,  22.     i'resh-water. 
10.  "  oBi.ONUA.    Kg.    (var.,  oiiria,  n.   var.),   K.    B.,  4,  f.  21 ; 

Sclini.  At.,  47,  f.  (i3-t)8;  Sin.  Sp.  T.,  No.  30().  Marine. 

II.  "  A(R(>.>*PHAi;itiA,  toniia  majiis.     Freshwater, 


I'lal.XXl 


} 


IM.ATK  XXII. 

MitenilliMl  ■'*)»  (lluinotcrM. 


i 


Ki>;.    1.  HiDi.iM'HlA  TlJoMKYi.  var,  Ki.per,  T.  M.  S.,   1S5»,  p,  S,   1,  f.   1,  2, 

I'lil.,  p.  S4H.  (i,  f.  10;    V.  H.,  1)8,  f.   2:1      Marine. 
Fij;!*.  2,  S,  4.  Py.mdici  LA  ui.oiia  ia.     This  fi^r.   copied   fnmi    Pritrhiird  has  no 

•'      «. 


value;   it  is  no  iliutoni. 


BiBi.ARiUM  (HvLoniBi.M'M).  eccentricuni,  Elirl).  Mik.,  3S,  12,  f.  31. 


M 


iirine. 


Kijr^.  S,  it. 

Fig.   10. 

••    11, 

"      12. 

"     la 

"  14. 

Fiv'i*-  1"»,  '•'• 

KiK.  17. 

"  IS.    . 

"     li>. 

'•      20. 
"      21. 


FiL's.  28,  24. 
Fi«.   2o 


Figs.  2H,  27. 
FiR.  2S. 

"      29. 


"  (Styi.ohiiii.11  m)  (livisnm,  Elirl..  Mik  ,  33,  12,  f.30. 

SvMHOLonioRA  ACMTA,  Klirl>.  Mik..  :W.  f.  21,  Mic.  Dictv.  43,  1".  54. 
Of  no  vaiiH';  proltalily  only  a  frajfrnent  of  ii 
Tiiconliuni. 
(JoMPiU'NKMA  ()UK<ioNit  I'M,    Khrli.    Mik.,   ;{7     :'    I    '2,   13,  =  (t. 
Hercnlanenin.  Klirl).  =  a  lar)j;f  \  m.  if '  i.  Capitatuui. 
Klirl).     Fresli-wnter. 
Navici-la  nsciLA,  Khrl).  Mik..  «.  1,  f.  13,  a.  I).,  V.  H.,  10,  f.  14. 
Fresli- water. 
"  SiBlNi'i-ATA,  (Tiiin..  M.  H.  S„  Cleve,  Vejja.,  p.  470,  f.  oU, 

(Jrnii.,  V.  H.,  12,  f.  20.     Frcs«li-water. 
V.    M.,    12,    f.  22, 


var.  (It  timoHii 


"  IXDIII.AI'A,    var.    (il    limomi.    (irun., 

Fresli-water. 
"  uiitKKKn.A,    var.    of   limoxa,   (irun.,    V.    II.,    12,   f.    19. 

Fresh-water. 
''  S(  iiuMA.NNiAXA.  =-  (t rochuK .'  K\\r\<.}  (irun.,  V.  II.,  11, 

f.  21.     Fresh- water. 
tkni;m.a,  Hrel..,  I'rit ,  p.  904,  Sclmi.  At..  47,  f.  4.'),  46, 
"-  .Y.  radioii'i,  var.     I'Vesh- water. 
XiT/scHiA  ci'ksokia,  (  Haeilaria  (ursoria),  I'rit.,  7X4,  4,  f  20,  (irun., 

t'leve,  1880.  p.  S9 ;  V.  H.,  ((2,  f.   19.     Fresh-water. 
Navici'I-a  DkWittiana,  K.andS.  Bull.,  Tor.   But.  t'lnli,  .Aufjuwt 

1S89,  .Vllanlie  City,  X.  .1.     Fossil. 
(io.Hi'HoNKMA  (Japitatim.  KIuIi.  Mik.,  Hi,  3,  f.  .'17  ;  K.  B.,  iti,  f.  2; 
Hah.  S.  I).,  s,  f.  1,-);  S.  B.  I).,  28,  f.  237.     Fresii- 
water. 
Sliiizonk.ma  vui.«iAiiK,  Tliwaites,  \.  X.  H.,  1848,  12,  f.  41,  V.  H., 

17,  f.  (i.     Marine. 
Xavkii.a  hii().mbi>I'<i>,  F:iirl>.,  K.  15.,  28,  f.  4.",;  30,  f.  44;   Kab.  .S. 

I).,  i\  f.  1,-);  .S.  H.  I).,  H\,  f.  129.     Fresh- water. 
FhEi'R().MG.MA  DKi.UATii.i  .M,  W.  S.,  S.  B.   D.,  21,  f.  202,  Frit.,  p. 

918;  Sni.  .-'i)  T.,  No  398.      Fresh-water. 
KiMTHK.MiA  Maiuna,  Donk.,  T.  M.  S.,  I8(i8,  p.  29,  3,  f,  14. 
.Ami'Hoha  PIJCATA,  =  (.,4  lineolata,  Flhrb.)  Grej(.,  T.  M.  S.,  1857,  p. 
70,  1,  f.  3;  II.  L.  S.,  Lens,  p.  75,  No.  25,  2,  f.  3; 
Schm.  \t.,  2<i,  f.  50. 
1'rino.srnKNiA  ==  {Lk.moi'hoha),  papeana,  (itun.  1863,  p.  138,  14, 

f.  11,  fit;.  27,  var.  elonKata. 
CoLLKiTO.NK.MA  vt-LGARE.  Thwaites,  \.  N.  H.,  2d,  Ser.,  Vol.  I,  12, 
f.  H.,  S.  B.  f).,  II,  p.  70,  -irt,  f.  35,  Sm.  Sp.  T. 
Fresh-water. 
BinDUM'iiiA  LI  NATA,  lilirl).  Mik.,   18,  f.  .53.      Very  (ioubtfuliy  a 
Biddulphia. 


J 


■iii 


.1] 


PLATK  XXIII. 

FiKures  magultlctl  <)(H)  dlHni(>U'rt>, 

• 

1. 
2. 
3. 

it 

PRKSTIOI'IIORA,  Jiin.,  Schrii.  At..  7<',  f.  72,  (=  N  Ornbro 

viir.)     Miiriiu'. 
MAR(iiNATA,  O'M.  not    Lewis's    Marijinata  wliioh  is    a 

Manloglnln.     This  may  be  ^V.  incurvnto,  (ireu. 
noMiHTW,  K'k.,  (Jrejj.  I>.  C.  p.  12,  1  f.  12;  Sclirn.  At.,69,  f. 

28,29;  V.  H.  H..  f.  22. 

4. 

If 

HiMiLANs,  O'M.,    fijiiire,    p.    373,    31,    f.    47.       Marine. 
O'Marii's  fipm'e  too  lingular  and  Dnnkin's  Hgiire  too 
aciiuiiniite.     H.  L.  8. 

t* 

5.(11. 

) 

MBER,  W,  H.,  S.  B.  T)..  I.,  p.  4«,  16,  f.  133;   Donk.  B.  D.. 
F..  62,  i),.l'  5 ;  Sihrn.  At.,  -lO,  f.  16-18.     Fresh-wiiter. 

■              " 

6. 

(. 

IsocEi'HALA,   Khrb.,  E.   Amer,,  p.  133;   K.  B,  p.  101; 
(VM.  I.  D..  30,  f.  31. 

•1 

7. 

tl 

VENKTA,  Kg.,  K.  B  .  30,  f.  76;  Rub.  ^.  D.,  6,  f.  83;  Sm. 
Sp.  T.,  No.  328 ;  V.  H,  8,  f.  3,  14,  f.  34. 

II 

8. 

«*  , 

DUPLICATA,  Ehrb.  Mik.,  21,  f.  35;  K.  B.  28,  f.78;  Uab. 
8.  D.,  5,  f.  4. 

i> 

9. 

ti 

DI8PHENIA,  Kg.,  K.  B  ,  p.  93,  28,  f.  54 ;  Prit.,  908. 

ti 

10. 

(. 

FUsiDUM,  Ehrb.  Mik.,  7,  1,  f.  16,  5,  f.  4:  K.  B.,  p.  96. 

II 

11. 

>i 

LIBER,  W.  8.  vide  above,  Fig.  5. 

II 
1. 

12. 
13. 

it 

SiLLiMANORUM,  Ehrb.  Mik.,  2,  f.  13 ;  Lewis  W.  M.  D., 
p.  11,  2,  f.  8 ;  W.  and  C,  1,  p.  6,  2,  f.  8. 

JoHNSONii,  O'M.  I.  D.,  p.  373,  31,  f.  46;  V.  H.  B.,  f.  28; 
Sm.  8p.  T.,  No.  286.     A  very  deiicnte  diatom. 

II 

14. 

it 

Esox,  Kg.,  K.  B  ,  p.  94,  28,  f.  53;  Prit.  896,  12,  f.  43; 

• 

O'M.  I.  D.,  31,  f.  33.     An  exaggerated  form  of  N. 
permagmaf 

11 

15,  16. 

ii 

TRUNCATA,  Kg.     These  figures  from  Rab.  8.  D.,  6,  f.  67. 
Entirely  distinct  is  Donk's  form,  which  see  Plate  at 
end. 

■' 

17. 

<• 

Reinhabdti,  Grun.,  V.  H.,  7,  f.  6,  6;  8m.  8p.  T.  No. 
311.     Var.  of  N.  varinns,  Oretj. 

1* 

18. 

" 

TTVDOSA,  Ehrb.,  Mik.,  39,  3,  f  90.     Abh.  J871,  1,  f.  4;                * 
K.  B.,  28,  {.  83;  Rab  8.  D.,  6,  f.  82 

li 

19,20. 

II 

PUPULA,  Kg.,  K  B.,  30  f.  40;   Rab.  8.  D.,  6,  f.  82;  V  .H. 
13,  f.  15,  16. 

ii 

21. 

II 

VELOX.  Kg ,  K.  R.,  3,  f.  66 ;   Rab.  S.  D..  5,  f  12. 

U 

22. 

GOMPHONBMA,  A.MKRICANUM,  ( =  eapitntum),  Ehrb    .Mik.,   16,  13,                               | 

f.  33;  17,  l.f.  53;  5.  1.  (.  38;  9,  1,  f.  3o. 

i 

23. 

Btkotia, 

HBPTOPoy,  Ehrb.  Mik.,  16,  2,  t.  26;  17,  1,  f.  34. 

'         - 

I'lui.   XXI 


\ 


24,  2ft,   Navicvla,  Amphionyh,  Ehrb.  Mik.,  ;iit,  S.  I.  H(i ;  .H7,  '.i,  l.  i.  fi,  Hill. 
Jour  May  1861,  \>.  47  ;  K.  B.,  28,  (.  87  ;  Rah.  8.  D.,  «, 
f.  63.  Very  like  N. /u»iff>rmi$,  (irun.  V.  H.  14,  f.  33 
"  LATA.  Hreh.  V.  II.,  6,  f.  1,  2,   iJonk.  B.  D.,  55.   18,  1«7. 

(iOMPiioMKMA,  Amkhu'anI'M,  Khrb  (b  0.  acuminatum),  Mik.,  !<>. 

3,  f.  33. 
EuNariA,  HBLi-A,  Elirb.  Mik.,  33,  12,  f  17;  K.  B..  29.  f.  50;  Kiib. 
S.  D.,  p.  17,  1,  f.  28. 
"         TRKDKNAUir,  Ehrb.  83,  10,  (.,  9. 
31,32.    Ehthkmia.  /,ehha,  Kk,  forms  of;   K.  B,  "i,  Pi,  ».  rt;  Kab.  S,  D.,  1. 

f  8;  H.  B.  I).,  12,  1,  f   4;   V.  H    31,  f.  '.»,  II,  14. 
name  an  E,  Zebrina,  Ehrb.  Mik.  12,  f.  25,  2rt, 


26,  27 
28. 

.28. 
30. 


;  ,, "' 

5  .jl 

I 

;« 

;■ 

.■«     ^: 

,,  1 

.1 


;•'!    '^J:    ;  ..'!  .       ■  ..M    ''i    - 


1-, 


i\<  ^: 


PLATE  XKIV. 

Figures  magnified  .iOO  (Uametors. 


Fig. 

1. 

It 

9.. 

Figs 

:3,4. 

Fij(. 

5. 

Figt*. 

«,7. 

Fig. 

8. 

if 

9. 

"      10. 

"  11. 
"     I'J. 

"  13. 
"  14. 
"      16. 

"      16. 

Visyg.  17,  18. 
Fijr.    19. 
"      -20. 
Kijrs.  21,  2-2, 


<t 

24. 

<( 

25. 

(^ 

2fi. 

(t 

27. 

Navkti.a   oiGi-rrs,   Klirl>.    Mik.,   6,  3.  f.   2,    Riilfs.,  I'rit.,  p.  !t08. 
Hiirdly  admits  of  separation  from  A'.  daclyluM. 
"  Lkwisiana,  Urev..  T.  M.  w**.,  18()3,  p.  11.%  1,  (.  7.     Mu- 

rine, N.  America? 
"  Baii.kyana,  (trim.,  Holmi.  .\t.,  (i,  f.  26,  27.     Murine. 

"  ScHUi.TZii.  Kiiin.,  Bull.  Tor.  Bot.  Club,  Maroh,  1889,  p. 

75,  PI.  .S9,  f.  2.     KoKsil   .Atlantic  City.     Nearly  al- 
lied to  N.  macnlata,  H.  L.  S. 
"  costata,  Kif.,  K.  B.,  p.  93,  3,  f.  5«,  Prit,,  9()(i. 

"  i>i()Mi'HALA,  Khrh.,  K.  B.,  28,  f  63,  Prit.,  |..  '.mi 

"  EiKGANs,  S.  B.  I).,  I,  p.  49,  16,  f.   137,  Sm.  Sp.  T.,  No. 

27<l.     Striae  wavv. 
sKi.MA.   Khrl).  Mik.,  14,  f.  21  ;  \x,  (.  61,  Sill.  .1..  May, 
1842,    2,  f.  24  ==   Pleuroniffmu  delicntHliinn){  later 
ohsorverH 
"  SIGMA,  Ehrb.,  =  Plenrosignia  anifiilatiim,  S.  R.  D.,  21, 

f.  205;  V.  H.,  IS,  f.  24. 
"  FORMICA,  Klirl..  Mik.,   17,  2,  f.   Id;   1,  :',  f.  8      Fresh- 

water. 
"  HOI.YONCA,  M  var.,  Breb.,  Lewis,  N    and   K.  Sp.,  2.  f.  7, 

V.   H.,  A.   f.  14.     Fresh-water. 
Li;PT(wruiMA,  Ehrb.  Mik.,  33,   12,  f.  21,  E.   Ber.,  1845. 
Fossil,  L'.  S. 
"  PUMILA,  (Jrun.,  var.  of  N.  veneta.  Kg.,  \'.  H  ,  ^,  f.  6,  7  ; 

14,  f.  .35. 
"  NOUi'M)SA,  Kg.,   K.  B.,  3,  f.  .J7:  28,  f.  71,  Sm    Sp.  T., 

No.  297,  var.  of  N.  mesoleptu. 
KHo.MBH.A,  tireg..  M.  J.,   18.55,  p.  40,  4.  f.  16,  Prit.,  5t03, 
7,  I.  71.     Striae  indistinct,  radiatin^f.     E.  \V. 
'•  CKi  (iFOR.Mis,   Donk.,   M.  .J.,    1861,  p.  10,  1,  f.  7,  V.  H., 

.v.,  f.  8. 
"  cARASsiUis,   Ehrb.,  K.  B„  28,  f.  67,  Rab.,  S.  1) ,  6,  f.  57, 

Lewis,  W.  M.  D.,  2,  f.  21. 
TKRMES,  (nodulosa,  ride  tig.  16),  A.  S.,  Schm.  .At.,  45,  f. 
67,  71,  V.  H.,  6,  f.  12,  1.3. 
"  Ti'MinULA,   Rab,,  S.   I).,  ,5,  f.  9,   Prit.,   p.  895.     Fresh- 

water. 
Stauronkis  8TAUROPHAKNA,  Ehrb.  Mik.,  (»,  1,  f.  18;  2,  3,  (.  11  ;  5, 
3,  f.  16,  K.  B.,  p.  105;   Prit.,  p.  913. 
"  sifiMA,  Ehrb.  Her.,  1844,  Mik..   18,  f.  6.",  evidently  a 

iorrn  of  Plenrosigma  ac^iirainatnra,  tinin.,  Sm.  .Sp. 
T.,  No.  393,  V.  H.,  21,  f.  12. 
"  tn-KROiDKA,  Ehrb.  Mik.,  14,  f.  5,  .3,  3,  f.  7.  Prit.,  p. 

913.      Fresh- water. 
"  BAII.EY1,  Ehrb.,  Mik.,  6,  1   f.  17;  3.5,  A.,  5,  f.  9;  -5,  1, 

f.  13,  Rab.,  .S.  D.,  f.  48,  Prit.,  91.3.     Fresh-water. 


PLAtE  XXV. 

Flffuref  ma'^iiifled  900  dlameten. 


Fig. 


iJ 


1. 
2. 
3. 
4. 
5. 


Figs 

8,9. 

Fig. 

10. 

« 
ii 

11. 
12. 

Figs 

18, 

H, 

15 

(t 

16, 

17. 

« 

18, 

lU 

Fig. 

20. 

ti 

21. 

« 

22. 

FigH 

23, 

24, 

25 

(4 

26, 

27. 

Navicula  mesogongyla.  Kg.,  K.  B.,  p.  99,  Prit.,  p.  895,  a  var. 
of  N.  nobiiis,  Abh.,  1870,  2.  1,  f.  16. 
"  INCOMPF  -.TA,  Lewis,  VV.  M.  D.,  p.  18,  2,  f.  20.  Oregon, 

White  MountHin. 
"  DECURRENS,  Ehrb.  Mik.,  11,  f.  2>..  Schm.  At,  45,   f. 

29,  30. 
*'  SERIANS,  vnr.  apipuliiiM,  Breb.,  K.  B.,  30,  f.  23,  Lewis, 

W.  M.  D.,  8,  2,  f.  o.     White  Mo'untain. 
"  SERIANS,  var.  crncifornie,  l^ewis,  W.  M.  D.,  8,  2,  f.  5. 

^  Wliite  Monutain. 

"  oiRHYNOHUS,  Ehrb   Mik.,  35,  A.,  14,  f.  3,  K.  B.,  28,  f. 

48,  Rab.,  S.  D.,  C,  t.  48. 
STAURONEI8  APicuLATA,  Gfev.,  fai ,  p.  30,  4,  f.  8,  Prit.,  913,  striae 

very  fine.     (^al. 
Navicula  Boeckii,  Heib ,  Cons.,  p.  H5,  Sm.  Sp.  T.,  No.  252. 
Fresh-water,  N.  .J. 
"  STAURONEiFORM,    Lewis,  W.  M.    D.,    2,    f.   9.     Lake 

Michigan. 
Stalrojjeis  INPLATA,  Kg.,  K.  B.,  p.  105,  30,  f.  22,  Rab.,  8.  D.,  p. 
48,  9,  f.  15,  Sni.  Sp.  T..  No.  492.     Fresh-water 
"  Stodderii,  Lewis,  W.  M.  D.,  p.  13,  2,  6,  Proc.  Al.  N. 

Sc,  Sm,  Sp.  T.,  No.  502     Markings  on  this  form 
are  stronger.     White  Mountain. 
Navicula  (altoionkis)  Stauntonii,  Grun.,  C.  and  M.,  No.  304, 

from  slide,  H.  L.  S. 
NrrzscHiA  virgata.  Roper.,  M.  .!.,  18.=)8,  p.  23,  3,  f.  6,  Sm.  Sp. 

T.,  No.  375,  J.  K.  M.  S.,  1880,  P).  13,  f.  13. 
Synedra  GouLARDii,  Breb.,  Cleve.,  1880,  p.  107,  6.  f.  119,  .Sm. 

Sp.  T.,  No.  558.     Figures  taken  from  slide. 
GoNOTHECiUM  RoGERSll,  Ehrb.,  Bail.,  Sill.  J.,  Mar.,  1844,  p.  301, 
Mic,  18,  f.  92,  S3,-M.  J.,  1856,  PI.  7,  f.  43-46,  Mic. 
Die,  42,  f.  39.     Marine. 
Triceratium  aculeatum,  Ehrb.   Mik.,  185(.',  p.  14.     Fig.  sug- 
gested by  ihe  de^fription.     Ff)8sii. 
"  9PIN0SUM,  Ball.,  .Sill.  J.,  Vol.  XLVI,  1844,  Sohm. 

A.,  87;  r  7.     Fossil,  Va. 
IIemiaulus  polymorphum,  (irun  ,  F.  Jos.,  p.  14,  2,  f.  42,  49. 

Marine. 
Mastoql'^ia  Kinsmanii,  Ivfwis,  W.  M.  D.,  p.  17,  2,  f.  16,  Whit« 
Mountain.     Fresh-water, 


I 


I'li.io  XX\', 


i 

it, 


PLATK  XXVI. 

Fijfures  iiiiitfiiined  r»(Nl  (liiiinet«r 


II 


Fiv'.    1-4,  !il»o  10,  11.  (iuMHHoNKMA  (4K.M iNATf.M,  S.  ami  F.  views,  \^.,  Syst.,  K. 

1'..,  p.  «(i;  IH,  r.  '.',  Kuh.,  S.  D.,  S,  f,  14,  S.  B.  D., 
-7,  f.  2;!'),  Sill.  Sp.  T.  No.  1.5().  N'arialilt-  in  sixt- 
hikI  form.     Fiif.  "2,  v«r.  hybrida. 

"        .").  (iOMl'HtlNKMA    M.VMMILL.V,   P'lirll.  Mik.,  27,  2,  f.    10,    Ahll.,     IM70,    |). 

.-It),  V.  H.,  28,  f.  1. 
FiKH.  *J,  7.  "  cAi'iTATi-.M,  vars. 

''      8.  Vt.  "  MA.xiMUM,  <irun.,  not  separable  from  (>.  iuamniill:i, 

Khrl>.,  V.  H.,  2S,  I'.  'A.     (/onipare  fiif.  b. 
"        10,   11.  "  UKMIXATIM,  .Ag.,  vide  fij<K.  1-4. 

"       12.  18.  "  coxsTRicTUM,  Ehrb.,  K.  B.,  13,  f.  1,  2.  Kab.,  S.  D.,H. 

f.  12;  S.  B.  D.,  1,  p.  7H,  2s,  f.  28fi,  Frit.,  p.  vSs7. 

10,  t.  lS7-i!t0. 
"       11,  |ij.  "  coN8TiM<"'riM,  ill  veffetative  coiulition  under   lower 

pOWtT. 

FiK.   It).  "  i)i(  HoTOMUM,  K|tr.,  K.  B.,  S.i,  ,S,  t.  14,  S.  B.  U.,  28,  f. 

240,  Sm.  Sp.  T.,  No.  179. 
Fig.    17.  "  0icHOT(iMr.M,  under  lower  power,  lu  vegetative  stale. 


M 


'ill' 


if 


I 'Into  XWI 


•    fc 


t  J 


PLATK  XXVri. 

■''iuuri's  iiiimnillcil  .vm  iliiiinrlrrs. 


Fias.  1,  'J.  (loMrnoXKM.^  sphakhoi-iioki'M,    Khrlt.   (ii.  Constrictnni,  var.,) 

11,  f.  HI;  S:>,  A.7,  r.  H;  h.  \V.  Hail, 


)  •'•  1  ■  ■ , 


Mik 

344.  f.  75,  V.  H 


r.  ;!0. 


Ki^.  :!.  (Ii; 


(I 


CIMSTATI'M,  Kalfs.,   All.  II..   1S4:1,  |..  4():!,   IS,  f.  C, 

Ral.    S.  I)..  8,  r.   19,  S.  B.  D.,  1,  i*.  79.  "iS,  f. 

'2:«),  Sm.  Sp.  T.,  N(..  178. 
iNTRicATiiM,  K»r.,  K.  B.;-9,  r.  4,  Kah.  S.  D.,  8,  f  27, 

S.  I?   1).,  29,  f.  241. 
viimi...  Kill!).  Mik..  ;59.  .S,  f.  71.  Ri»l>.  ^    r).,.s,  f  9. 

.'^.  H.  I).,  28,  f.  212.  V   II..  24,  f.  20. 
(;ka<ii,K.  Klirl..  Mik.   .•<9.  :i,  f.  (i7,  ct.-..  Al.li..   lS(i9, 

1,  A.  f.  20.     .'^ill    .J,  May  18.-.I,  f.  IS-l."),  Hal.. 

S.  n.,  8,  I".  2(i. 
Ki.KOANs,  (Jrnii.,  V.  H..  25,  C.  19.     (  Inisla,  Cal. 
TrwiiDUM    Elirli.     A  var.  of  <'.,  Caiiilalnni,  V.  II, 

2:'.,  I'.  1 1 . 
SARcoPiiAdrs.  (ire^.,  M.  .1.,  1S.')(>,  p.   l."i,   1,  f.  42, 

V.  H.,  25,  f  2.  .'v  B.  D,  II,  p.  99. 
CitisTATrM,  Vidf  lis,',  .'i. 
Mkxicanim,  (inin.,  V.  II.,  24,  f.  :',  Ci.  ("<iniiinita- 

tiiiii,  var. 
TKN'Ki.MTM,  K,i;.,  S.  B.  I)..  1.  p   80,  29,  f.  243,  Hah. 

S.  I)..  8,  f.  5,  Sni.  Sp.  T.,  No.  183. 
Oi,i:va(;kum,  Elir^.,  K.  B.,  7,  f.  l.S,  15;  S.  R.  D., 
29,  f.  244,  Sm.  Sp.,  T..  No.   1.82.  V.   H.,  25, 
f.  20. 
Semiai'kktitm,  (Jrun.   V.  H   24.  f.  42. 
Fi^f*   17,   1!>.       Hiioicosi'HKNiA,  (TRVATA,  var.    Marina    Ral>.,  M.  Diet.,  48,  f. 

19,  V.  II.,  26,  r.  4. 
"       19.  2(1.  21 .  Tvf.  CiiiVATA,  Grim.,  18(58,  p.  8  M.  Diet.,  48,  f.  19;  V.  II , 

2(5,  C.  1-:!. 
"      22,  2;!, 24.  -AC  UNANTiiEs  i.oNciiPKs,  Aff.  Syst.,  p.  1.  K.  B..  77,  20,  f.  1,  S.  B. 

D.,  II,  V»,  f.  300,  Prit.  873, 7,  f.  42,  Sin.  Sp.  T., 

No.  4:^,  Bail.  M.  O.  2,  f.  1.     22  Kniire  plant ; 
23  inferior  valve  ;  24  8n,K>rior  valvi'. 
ExiLRs,  K^.,  .S.  B.  D.,  II,  29,  37,  f.  303,  V.  H.,  27. 

f.  1(5-19.  Fresli- water. 
"     inferior  valve,  V.  II.,  27,  f.  18. 
Mi(^R(«^KPirAi.t'M,  (irnn.,  ^^  (.\<'hnanthi«linni),  K. 

B.,  3,  ('.  13,  19,  Ral).  S.  D ,  8,  f.  2,  S.  B.  I).,  1 1, 

p.  31,  (51,  f.  380,  Sm.  Sp.  T..  No.  9.     The  typi- 
cal form  ih  hroader,  more  inllateil. 
IIii).><()Nis,  (Jnin.,  valves  sn|>erior  and  inferior,  V. 

H.,  27,  f.  25,  2(5. 
HREViPRS  A.sf.,  Mik.,  (5,  2,  f   2.>;  K.   B,  20,  f.  9, 

Sill.  J.,  1842,  p.  325,  3,  f.  12,  Sm.  Sp.  T.,  No, 

1,  S.  R.  D..  :57,  f.  301. 
do.  inferior  valve. 
siinsK.-*.xir,is,    Kfi-     Two   inferior    valves   and    two 

plantK  in  nitii. 


Fiijs.  (5  7. 


9 


"        11. 
■'       1 2. 

"     i:i. 

Fiss.  14,15 
Ffg.   Ifi. 


Fig.   25. 

"      2(5. 
"       '>7 


(1 
II 


2S. 
29. 


"     ;>o. 
Figs.  ;tl-.34. 


(I 
II 


•'Si 

li 


II 


I'lui.^  X.WII. 


i? 


I 


Kilts. 


3,  4. 

:.,  (). 

7,  •^. 
II.  ]-2. 


FiK.   l: 


II. 
15,(19) 

• 

17,  IS. 


Fi,i?.    -il. 


"  i!2. 

"  24. 

"  2.-). 

"  2(i. 

«  .)- 


I'LATK  XXVI 1 1. 

Kluiu't's  nmifiiUleil  .VKJ  illumi'terM. 


i'^CIflZONKMA  IIAMOSISSIMA,  AfT.  SvHt.,  lijf.  1.    A  fVolliI,  llJltlinil  si/.f  :  S. 

H.  I).,  II,  p.  79,  oil,  r.  ;!(;9,  Sm.  Sp.  T.,  No.  47S. 
'•  SmitHII,  ;>,  the  t'riistiilt',  I.  Iroiid,  iiatiiral  hI/c,  Ai;.  Syst., 

p.  IC.  K.  B,  27,  I.  :.,  V.  II.,  1.'),  f.  4. 
"  (iRKVll.i.Kl.  "),  fniml,  mil.  si/c  :incl  rnisliik'    ■■;",  .Vt,'.,   I*. 

H.,  T),  r.  1  ;  -JH,  f.  I,  S.  M.  !).,  .Vs,  f.  ;:ii4,  I'lii.,  p.  ',t2H, 

s,  r.  ;is. 

"  IMI'IJCATI'.M,  7,  Irdiid,  iiiit.  size;  S  rnislulf,  S.  I?.  !).,  59, 

f.  ;!(i7,  Sn).  Sp.  T.,  Nn.  471. 
"  (fii'cKiK:!,  fvdiiil,  nut.  si/.i',  and  fnistuli-    ;•■,  S.  R.  D.,  ->(), 

f.  :!.".4,  {'lit,  !)2s,  V.  M.,  k;,  f.  1.  2. 

■'  ('(lAiolDKs,  (  P'riistiiie  ■','",  nnd  frond,  nat.  si/.c).  Ay  ,  S.   15. 

I).,  I'l.  -'.7,  r.  H5S,  V.  If.,  1(1.  f. ;;. 

"  .•VMIOIMcANI'M,     (illMl.,     v.     II.,     I"',    r.    ;V>,    (  S.    ti'UUt'. 

vaiM 
DiVKUdKNs,  S.  H.  I) ,  IM.  ')7,  f.  3<;;'.,  Sin.  Mp.  T.,  No.  4(1.'., 
V.  H..  !"•,  f.  10,  prolialdy  a  var.  of  S.  Sinitliii 
,  (loMPiroNKMA,  coNsi'HK  TIM,  v;tr.  Miiior.,  Elirli.,  K.  I!.,  l;',  f.   I-:!, 
Kill..  S.  I).,  S,  f.  12,  S.  H.  I),  ir,  98,  29,  f.  2:i(l. 
Caimtatim,  Khrl).  Mik.,  10,  :!,  I    ;}7  .  17,  1,  f.  51^ 
Ral..  S.  W.  I).,  >H,  f.  15,  S.  B.  IX,  pi.  28,  f.  237,  Sin! 
Sp.  T.,  177  and  6(i5. 

AidiK,  Khil..  Mik..  17,  1,  f.  55;  9,  1,  f.  41),  K.  B.,  29, 
{.  71,  Hal..  S.  I).,  8,  f.  19,  V.  H..  23,  f.  29,  prol.aMy  a 
var.  of  ( i.  .\('iiiiiinatiiin. 
•'  <Ai'iTATt'M,    Khrl).,  coiiip.  \\ti.   Id  and   20.     Larger 

form. 

Aci'MiNATUM,  vur.  luticeps,  Ehrl). 
"  var.  laticeps. 

"  var.  tiigonocephaluin,  Ehrl). 

var.  tnrris,  Ehrh. 
var.  coronata,  Ehrl). 
"  var.    intermedia,  (Jrim.,   Ehrli.  Mik., 

16,  3,  f  34;  17,  2,  f.  37;  16,  2,  f.  43,  Sill.  .].,  var. 
Jiilv  1842,  p.  323,  3,  f.  6,  K.  B..  13,  f.  3,  S.  B.  D.,  28, 
(.  238;  M.  J.,  1854,  p.  99,  4,  f.  13,  Prit ,  887,  1.",,  f. 
23;  Sin.  Sp,  T.,  Xo.  175. 


(t 


II 


^^v. 


I'l.ii..  yAviii. 


<, 


\ 


i 


!i 


V'lHH 

1,-'. 

(1 

3,4. 

a 

••).  (i. 

<i 

7.8. 

Fig. 

Figs 

9. 

10,  11. 

Fig. 

12. 

i< 

13-15. 

ltt-18. 


Fi'-'.   1!). 


PI.ATK  XXIX. 

FlgiircH  iniiKiilflud  5(ll)  diHiiicUtrM. 


LiuMuriioKA  KLAHELLATA,  W.  H.,  H  B.  D.,  I,  p.  HK,  Vh.  2t>  and  .'52, 

f.  234,  .1.  R.  M.  H.,  1879,  p.  «)83.     Marine. 
KiiiPiDOPHOKA   PAKAnoxA,  fninclH  and  ningle  friiHliile.  ^u.,  K.  B., 

p.  12--',  10,  r.  •■>,  H.  B.  U,  2r),  f.  231,  M.  !>..  13,  f.  19, 

Sm.  Hp  T.,  No.  899.     Marine. 
C'ymbosira  AciAKDiiii,  K.   H.,  p.  77,  20,  I'.  3,  Prit.  p.  875,  14,  f.  14, 

M.  D.,  p.  14,  f.  IH.     Marine. 
(iLiMAnwpHAKNlA  MUMi.KiKKA,  Klirh..  K.  Anier.,  2-«.  I'.   I,  K.  B.. 

p.  123,  29,  r.  80;   Prit ,  772,  11,  f.  4h,  40,  M.  D., 

19,  r.  9. 
A('HNANTH*is  AKKNicoLA,  Biiil.,  M.  < ).,  p.  3«,  2,  f.   19.  Fresli-water. 
"  MiNUTlsHiMA,  Ehrl)..  K.  R.,  21.  f  2,  Rab.,  8.  D.,  p.  25, 

8,  f.  2,  V.  II.,  27,  r  35-;W.  and   41-44.     Fresh- 
water. 
Lit'MOPHOKA  Ji;b(4KN8II,  Ag;  Cleve.,  1H80,  p.  110,  7.  ('.  125,  V.  H., 

4(i,  f.  10,  11.     Marine 
Ho.MOSOCLAUiA  Fii.iFORMis,  W.  S.,  S.  B   I).,  p.  80,  55,  f.  348,  Prit , 

p.  785,  4,  f.  25,  Sm.  tip.  T.,  No.  197.  Fig.  13  frond, 

under  low  |)ower,  14,  15,  friistiileH  sf".     BrackUh 

water. 
"  CAPITATA,  H.  L.  S.,  A.  (l  J.  M.,  1878,  p.  12,  3,  f.  1, 

Sm.  Sp.  T.,  No.  674.  Hig.  16,  frond,  natural  size; 

17,  frustules;  18,  section  of  frond  magnified. 
Go.MPHuNEMA  oLOR,  Elirb.   .Abii.,  1870,  p.  56,  3,  2,  f.  2. 


I 


n.iir  NX IX, 


PLATE  XX X. 

FlKuri's  iim«iiltli(l  VNi  .llitmricf!*. 


Kin.     1.  I'LKlKOSKi.MA  ..IIH(  I  HUM,  W.  S.,    S.   H.   D.,    I.    1'.    "io,    '^O,  L    •^•'•i.  i^l'"- 

S|..  T.,  N.).  407,  Clev*-.,  IHHd,  p.  45).     "  l'n.l.nlily 
the  siiiiic  IIS  I'.  |i(>iM(iniH,  (Jnin.,  l«tH»,  p.  o(i'_',  4,  f. 
s,"  H    1-.  S. 
"      2.  "  Ai-rKNiAiTM,  VV.  S.,  S.  B.  D.,  1,  p.  rtH,  '22,  (  2l(i,  Sin. 

Sp.  T,  No.  :<!»•'),  V.  II.,  21,1'.  11. 
"      3.  "  itKiiorM,  S.  H.  I).,  I,  p.  t)4,  -ilt,  f.  I'.IH,  Sin   Sp.  T.,  No 

410.  V.  H.,  1»,  f.  :». 
"      4.  ••  Ni-iiKi  ri.A,  S.  H.  I).,  p.  t»4,  21,  (.  201.  ({run.,  I«ti0,  p. 

557. 
Figs.  5,  (9).  "  AN(iii.ATiM,  S.  H.  I).,   1.  p.  ti'»,  21,  I".  206,  .\    M.  H., 

18r,2,  p.  7,  1,  !•  M,  Sin.  -p  T.,  N..s.  a8«,  81tO. 
Fig8.  t^-8.  "  SPKNCKUi,  W.  S.,  S.  15.  1)..  1.  p.  «:!,  22,  C.  218. 

Figs.  10.  11.  '•  .<(  ADUATiiM,  S.  H.  \).,  i,  p.  »).'>,  20,  r.  204,  Sni.  Sp  T., 

No.  :^i»l      ( )nly  a  vsir.  ol'  P.  tingnliituin.    Fig.  11, 
found  iii  North  .Vincricn?  H.  L.  S. 
Kig,    12.  '•  JHIDTKNME,  Suilivant,  Sill.  .1.,  ISoJI,  (Miirdi),   I'ril., 

p.  917.     Frohahly  a  vur.  of  P.  Spcni-eri  or  al- 
tennatiini. 
'<      13.  "  Prol>ably  sanic  iw  Vulledonemu  enininm,  Breb. 

"      14.  "  oKTiWATUM,  SiillivaiU,  Hill.  .J.,  185W,  Prit.  919. 

Figs.  15,  16.   Ma8To<}U)IA  exkjua,  Lewis,  N.  R.  Sp.,  p.  7,  2,  f.  5,  V.  H.,  4.  f.  25, 

26,  Sni.  Sp.  T.,  No  H76,  Lewis,  letters  and  also 
annotated  copy  of  his  paiier  de8cril»e  tins  diatom 
a.s  only  a  variety  (immature)  of  Mast,  lanueolatu, 
H.  L.S. 
"      17,  18.  "  GRKVii.LKi,  W.  :i ,  S.  B.  D.,  II,  ^i^  62,  f.  389,  M.  J., 

ISort,  l,f.  16,  V.  H.,  4,  f.  20. 
Fig.   19.  "  i>AN(  Eoi.ATA,  S.  B.  I).,  II,  p.  04.  54,  f.  840,  Sm.  Sp. 

T.,  No.  214,  V.  11,  4,  f.  15  and  17. 
"      21-23.  •'  Smithii,  Thw.,  S.  B.  D.,  1 1,  65,  54,  f  341,  Urun.,  1860, 

p.  57,  5,  5,  f.  11,  V.  IL,  4,  f.  13. 
Figs.  24,  25.   Ckratoniks  arcus.  Kg.,  K.  B.,  f.  104,  6,  f.  10,  Ral).,  S.  D.,  p.  37,  7, 

f.  3,  8m.  Sp.  T.,  9,  No.  66,  V.  H.,  37,  f.  7. 


i. 


n.iir  x\x. 


i 


IM-ATK  XXXI. 

Kiu'iii't's  iiiiiv'iiliii'd  "((Ml  iliitint'fci's. 


F'm    1.  Ami'iih'I-kiha,  ()RK(iON'i(  a,  Gnm.,  M.  M.  .1.,  1S77,  \>.  17i). 

'■        -J.  "  I.INMKRIIElMKlfll,  (irilll.,    1 8(>2,  J).  4tlil,  11,   I'.  11, 

Sin,  S|i.  T..  No.  17. 
Fins.;;-").  "  I'Ki.i.n  IDA,  Kii.,  K.  I'..,  p.  lO:-!,  3,  f. -52;  30,  f.  84, 

Kill..  S.  1).,  .-),  f.  .5;  S.  R  D..  l-i,  r.  1J7  ;  Prit.,  j.. 

7.s;!,  4.  f,  ;".U,  Sin.  Sp.  T.,  No.  18    '.',  front  and  2 

side  views, 
KiK.   "•  '■  \VKissn.(i(iii,.);inis(li,  M.  M.  J.,  1H77.  lito,  f.  14. 

"        7.  I'l-KlHOSUiMA   VIK(;i\IA(l  M,  .\..J.    M..    l"Vi).    1877,    p.    IH;    Sni.   Sp. 

T ,  So.  416. 
"       S.  ScoMOl'LKURA  I.ATfXrUlATA,  (JllMl.,  l.'i7H,  p.  17,    V.    H.,    17,   f.    12; 

(Xavii'ula,  eonvi'xa  \V.  .S.) 
Fi},'s.  il,  10.  "  TIMIDA,  lireb.,  (Navicnla  Jeniu'i-ii,  W.  S.),  =--  Nav. 

AnKlica.  Rails.,  V.  H.,  17,  f.  11,  V.i. 
Via.    11.  .X.Mi'HOKA  LAxcKiiLAVA,  Cleve.  18(57,  p   6()7,  23,  f.  2,   M.  J.,   1874, 

p.  2.5,  6,  8,  !".  ;!,  Scinn.   .\t.,  25,  (.  6,   H.  I..  S., 
Lens,  PI.  3,  f.  34. 
"       12  S(  (iLioi'LEl  KA  ASTILLAUUM,   Pel.,    (allowneis   antillanim,    ("leve. 

and  rirun.     Probalily  only    a    coarser  grained 
var.  of  ,Sei)l.  tumida,  fij^s.  9,  10. 
"       i;>,\!7i.  '  Jkxnkkii,  Griin.,  1860,  p.  5.')4.     Xdvicnla,  Jennerri, 

S.  15.  D,,  Ki,  f,  134.     -^ide  and  front  views. 
'•     J4.  .\,MiMioi<A,  Mil  lioxATA,  H.  L.  S.,  A.  Q.  .J.  M.,  p   17,  3,  f  10,  J.  M., 

^  1879,  p.  134  ti,  f.  9,  Sia.  Sp.  T.,  No.  38, 

'■        I."),  liEKKELKYA   Mil  ANs,  (iriui.,  liedw.  vol.  7,  )».  5,  V.  H.,  16,  f.  11, 

16.         A^^TJ;Klo;s•El.J.A  FoKMDSA,  var,  S.  B.  I).,  p,  81,  T,  M,  S.,  1860,  p, 

149,  7,  (.  8,  Prit,,  p.  779,  4,  f.  17,  M,  Die,  43,  f. 
14,  Sin,  Sp.  T.,  No,  46,  V,  H..  .'il,  f.  19,  20, 


«     *'. 


1^1  .»io  XXXI 


ii 


•t' 


■  f 


M.aTk  xxxrt. 

Miiiinlflorl  rm  (lliiiiit>tiM> 


Fi^.   1.  Pi,kui{osi(;ma,  MArRUM,  W.  S.,  S.  B.  D.,  1,  p.  (i7,  .SI  f.  276,  (N. 

Amor.?  H.  L.  S.,  possibly   a  local    var.  of  \'. 
Fascicola.) 
"      2.  "  Ei.oN(iATUM,  W.  8.,  S.  R.  D.,  I,  (54,  20,  f.  11)9.  Sill. 

Sp.  T.,  No.  400. 
"      .T  "  pfU'HRt  M,  <Jriin.,  1S60,  p.  ."..')6,  4,  f.  2,  Sni.  S|.     i\, 

No.  fiil"). 
"      4.  "  OEroRUM,  W.  S.,  S.  B.  n.,  1,  p.  63,  21,  f.  19  i,  V.  II., 

19,  f.  1,  Sm.  Sp.  T.,  No.  694.     Striation  scarcely 
L'oarse  enoufjli  compared  with  other  tifjiires  of 
plate. 
Figs. .-),  6.  "  Baltuum,  S.  B.  D.,  22,  f.  207,  Prit..  917,  x,  f.  :«;  9, 

f.  144,  (Jrnn.,  1860,  p.  .'mS;  1H78,  p.  18,  3,  f.  9, 
Sm.  Sp.  T.,  No.  396. 
Fis    7.  "  Hippocampus,  W.  S.,  S.  B.  I).,  22,  f.  21.''),  Prit.,  919, 

9,  f.  14.-),Sm.  Sp.  T.,  No.  404. 
Figs.  8,  9.  "  FORMOsuM,  W.  S.,  S.  B.  D.,  20,  f.  19.%  Prit..  917,  8, 

f.  32,  M.  .!.,  18.16,  p.  20."),  13,  f.  .5.  Sm.  Sp.  T., 
No.  402. 
Fijf.    Ht.  "  Arstuarii,  W.  S.,  S.  B.  1).,  31,  f.  27),  Sm.  Sp.  T., 

No.   394.     "A    pale,   thin,  small    form   of  P. 
Angnlatum  "  H.  L.  S. 
"      11.  "  Fascicola,  W.  S.,  S.  B.  D.,  21,  f.  211    Prit.  916,  12, 

f.  60,  6],Sm.  Sp.  T.,  No.  401. 
'      12.  "  omjfRi-M,  S.  B.  D.,  20,  f.  2(»6,  Sm.  Sp.  T.,  No.  407. 

very  nearly  allied  to  P.  Peisoiiis  of  Gnin. 
"      13.  "  KiETZiNOii,  Gnin.,  I860,  p.  .-)61,  4,  f.  :!,  V.  H.,  21,  f. 

14,  =^  P.  Spenceri,  var. 
"      14.  •'  EXtMiUM,  Breb.,  V.  II.,  21,  f.  2,  =  Sidlivants  obtii- 

satnm;  =   formerly  Collectonema  eximiiim. 


I'lalo    \\X1I 


: 


IM.ATE  XXXIII. 

MaKiilflfMl  'itHl  (llftiiiPtcMS. 


Kiys.  1,  2.  ('(!»,•(  ox  Eis,  i'f<Kii>()-MAK<ii\Ai'A,  (rrf>.'.,  I'lit.,  >^71,  7,  I".  :^9;  Jan. 

siiid  Hill..,  p.  7,  4,  f.  16;  V.  II..  -Ji',  f.  '20,  21.     Sii- 

perior  viilvc  and  inferior  valvi',  Sni.  Sp.  T.,  No.  "4. 

•      :',,  I.  '•  TiiWAriFSii,  W.  S.,  S.  H.  I)., :{,  f.  as,  =  AilinantirKl- 

ium,  flexelliim,  Hreli.     Fi^.  3,  interior  valve;  li^r. 

4,  superior  Valve,  V.  II.,  ■-'il,  f.  29,  30. 

'      .-.,  11,  '  inti:rri  PTA,  Grim.,  18(i3,  p.  144,  i:'.,  f.  14;  V.  U.,^iK 

f.  :',,  4.     Fi;?.  •'>,  inferior  valve;  fif?.   M,  superior 
valve. 
•'      (i,  7.  '  i.iNK.VTA,  Kiirb.,  lower  valves,  Mik.,  3ii,  :!.  f .  1 1  ;  M>U. 

lS(i9,  !,   .\.  f.  8;   1,    B.  f.  2,  etc.    Sill.  .1..  IS.')!,  p. 
44;  V.  II.,  30,  f  31,  ;!2. 
Fig.   8.  "  Qrevii.lki'.'  small  form,  S.  B,  I).,  3,  f.  35. 

Figs.  It.  10,  •  cusTATA,  (heg.,  .M.  .1.,  IH.')."),  p.  :•.»,  4,  f.   10;    IS")?,  p. 

"•  ()8,  l,f.  27;  V.  II.,  30,  I    11-17. 

Fig.    11.  '  i.NTKKHUi'TA,  superior  valve ;   I'lV/'' fig.  o. 

Fig-;.  12.  1.3,  14.  s(:rTKi.i.UM,  Khrl..,  Mik.,  7,  :?  A,  f.  67;   lo  A,  f.  ofi, 

li),  f.  3H ;  K.  B.,  T).  r.  ti ;  Kal..  S.  I).,  3,  f.  4 ;  S.  B.  D., 
H,  f  34,   Sm.  .Sp.  T.,  No.  78.     Fig.  12,  snuerior 
valve;  13,  inferior  valve;  14,  hoop. 
"       ]'),  in  '  i)iia-rTA,(ireg.,  D.  C,  p.  19,  1,  f.  2.'i,  .Jan.  (Jiian.,  II,  B., 

f.  14;  V.  II.,  29,  f.  13-15,  inferior  valves. 
17,  Is.  "  I'LAcKNTiil.A,  Khrl).,  17,  siijierior  valve;   18,  inferior 

valve,  Mik.,  .->,  1,  f  24 ;  7,  1,  f  4(i,  K.  B.,  28,  f.  ll! ; 
r...l..  S.   I).,  27,  :•.,  f.  3;  S.  B.  0.,  1,  p.  21,  3,  (.  32; 
Sm.  Sp.  T.,  No.  77. 
•'      10,  20.  "  Cai.iforn'ka,  Grnn.,  V.  H.,  30,  f.  8,  10. 

"      21,  27.  ''  I'KDicii.us,  Fhrl).  Mik.,  .3.,  12  B,  f  I  ;  K.  B.,  5,  f.  9  ; 

5.  B.  I).,  2,  f  31  ;  Rab.  S.  I).,  27,  .3,  f.  1  ;  Sir  Sp.  T., 
No.  7(5.  Fig.  2^  frnslule  ■■;" ;  27  under  lower 
jiower,  in  aifit. 

"      2?,  23.  "  scUTKf.i.i'M,    Khrli.,   same  as   tig.   12-14  in  different 

stages. 

••      24,  2.').       Cami'YI.oneis  arois,  Onni.,  18(5?,  p.  429,  10,  f.  9;  V.  H.,  2S,  f. 

]r<,  k;      24,  siijierior  valve;   2o,  inferior  valves, 
varieties  of  Coc.  (Jrevillei. 
Fig.    2(5.  ('occoNMUS  STRIATA,   Khrl).  Mik.,  •').*^,  f  4;    14,  f.  41;    I.tA,  f.  .lo; 

la  B,  f.  1(1,  <■!(•.;   Hill).  S.  1).,  ;!,  f.  12. 

"     27.  "        I'KDicui.rrt,  v/'/f  II-.  21. 

FigH.  28,  29,  30.  Cami'yi.oneis  Grkvim.ei,  ( irnn.,  U.  M.  S.,  1S78,  p.  245,  14,  f.  f  ; 

V.  II.,  28,  f  10-12.     Fig.  28,  a  skeleton;  29,  in- 
ferior valve,  30,  superior  valve 
Fig.   31.  CoccoN'Kis  DKC'iiHSATA,  Khrh.,  E.  Amer.,  2,  (5,  f.  12;  K.  B.,  28,  i, 

17;   Ral).  .S.  D.,  8,  f.  (5.  * 

•'      :;2.  "        American  A,  Khrl).,  p.  123;  K.  B.,  p.  73;  Hal).  S.  I).,  p. 

27  ;  Prit.,  I'l.  12,  f.  48,  -^  V.  Mexieana. 

"      3;',.  '•         I'EmcuLUrt,  Elirl).,  same  as  tigs.  ;^1, 27. 


I'luio  XXXIll 


ftn.   34. 


It 

a?. 

It 

3K. 

KiKs 

39, 

4(» 

KlR. 

41. 

CoccciNKiH  (tiiLoNoA,  K.    H..  |i.  7'2.  •'>.  f.  7,  S,  Htiiiill  form  of  C. 
|i|itcei'iiil:)  '.' 
"        OcKANi.  A,  p:i)rli..  Al.h..  1S4().  p.  (i.'.  K.  .\iiuT.,  1,1.1'.  14; 
•2-t!,  f.  11,  12,  K.  R.,  7-2.  .■).  f.  .■>;  M,  f.  4,  I'ril..  Ht)S.  12; 
f.  42,  Sm.  S|>.  T.,  .No.  7")  -■"  ('.  diriipiii  viir. 
"         I'INNICA,  Klirl..  Mik.,  :;;:,  ?,,  (.   lO;   17,  2,  r.    19;  :«  a; 
2(t,  f.  !l,  t'lc.  Al.h.,  1870,  2,  1,  r.  44,  K.  H.,  28,  f.   18. 
Pril.,  (tXS.  12,  f.  41,   -    V.  .'^riiitliii.  vnr. 
NiTiDUi.ANs,  Kg.,  K.  II.,  4,  f.  It;,  j'rii.,  .S(i7. 
"         MARdi.NAiA,   Khrl).,  K.    H.,  •">,  I.  rt,   I'rii..  \,.  S(1H  ^-=  (\ 
Sciiltlliini  y 
(.;ami'VI,()NKIs  iiKijAi.is,  ==  ('.  ( M-i'vilU'i,  v;ir..  foiii|i.  liys.  2S-30, 

(ticv.,  M.  .1.,  18.')!>.  |i.  l.Mi,  r,  I'.  1  .I'll!..  |..  87(1. 
('(M'('I>NKIS  I'lNNll.AHIA,    Hil  il.    Si  ||.  .F.,  1 H41 ,  2.   f.  IW,    K.    I!..  73, 
|ii'ol<!ililv  N.  .Sinitliii,  ■"),  f.  IM,  or   Klliplicn,  whicli  Ih 
the  fri'sli-wjiti'i'  roiin. 


r/     "i". . 


I  1 


IM.ATK  XXX rV. 


Klunr's  iMiii;iiiit1*Ml  'iik)  liliinii'tcrs. 


i\ 


FiKH.  1,  -.  NiTzscHiA  s(  ALAiiis,  viiF.  untJiiliitii,  \V.  S.,  S.  B.  D.,  ;<i»,  14,  f. 

115,  Prit,  7H1,  4,  f.  22,  Sm.  Sp.  T.,  No.  365. 
CoccoNEi.s  NiTiDA,  Grej?.,  I).  C,  p.  20,  1,  I'.  2(i,  I'rit.  p.  871. 

"  LINKATA,  interior  valve;  Elirb.  Mik.,  IJl),  Ji,  t.  11,  .\bli. 

lSti9,  I   A,  f.  «;    1   B,  f.  2;  1   D,  f.  7;   Sill.  J., 
is:)l,f.  44;  V.  11.,  W,  »'.:■!  1,82. 
"  KEOAM9,  Grev.,  M.  J.,  1859.  p.  15t);  7,  I'.  1,  Prit.,  p. 

870. 
"  Grevillki,  W.  S.,  S.  B.  I) ,  3,  f.  35 ;  Sm.  Sp.  T.,  No. 

72,  Griin.,  1H62,  4,  f.  32. 
DiRiiTA,  GrcK.,  D.  C,  p.  1 9,  1 , 1'.  24 ;  V.  H  ,  29,  f.  13-16. 
EiMTiiE.MiA  succiNCTA,  Brcb.,  J.  Q.  C,  1870,  p.  42,  1,  f.  7  ;  Sm. 
Sp.  T.,  No.  154;  V.  H.,  .32,  f.  16-18. 
soRE.x,  Kg.,  K.  B.,  6,  f.  12 ;  Kab.,  S.  D.,  1,  f.  7  ;  S.  B.  D., 
1,  f.  9;  Sm.  Sp.  T.,  No.  153;  \^  11,  6,  f.  10. 
CoccoNKMA  Asi'KRiM,  var.  of  C.  lanceolalum,  Ehrb.  Mik.,  10,  3, 
f.  39 ;  (i,  1,  f.  1 ;  5,  1,  f.  1  ;  Sill.  J.,  1838,  2,  f.  2. 
Figs.  15,  16.       (lEPHYRiA  Japonica. 
"      17, ly,  19.  (iON'iOTHECiUM  KofiERSH,  Bail.,  Sill.  J.,  March,  1844,  p.  301; 

Mik.,  18,  f.  92,  93  ;  M.  J.,  1^56,  7,  43-40 ;  M.  D , 
42,  f.  30. 
Fig.   20.  Rif  ARDONEMA,  side  views  of  single  frustnles. 

"      21.  SuRiRELLA  FASTUOSA,  var.  Elirb.,  (S.  recedens,  A.  S.,  Schm.  At., 

19,  f.  2-4),  E.  Araer.,  2-4,  f.  7  ;  2-6,  f.  14 ;  K.  B., 
28,  f.  19;  S.  B.  D.,  9,  f.  66;  M.  J.,  1865,  p.  40,  4, 
f  12. 


(( 

3,  5. 

Fig. 

4. 

Figs 

6,7. 

(1 

8,  9,  10 

Fig. 

11. 

11 

12. 

it 

13. 

II 

14. 

•l.iio  XX\'I\ 


V 


IM-ATK  XXXV. 

I'Miriiri'M  iiiauiilttod  '*»t  .ilaiiu>l«M-H. 


Fiw-.  1   :<■        KiMT>iKMi\  (irBHA,  Ky.,  K.  H.,  I,  f.  -i'J ;  Hali.  S    I)..  1,  C.  :i ;  S.  H.  D. 

1">.  I,  1.  1.!;   IVii.  p.  T.V.t,  1-2,  C.  -27;  Sm.  Sp    T..  N<>. 
1/iO. 
"       I.  "i.  "  lafAMi.ATA,  Kiif.,  K.  I'..,  ■),  r.  •_'(»;  S.  M.  I).,  I,  l. ;!;  ]'r\\., 

7 til,  !»,  r.  It)'). 
"      (.,7.  •'  Hyni>mami,  VV.S.,  S.  |{.  I).,  !•.>,  1,  r.  I  ;  V.  II.,  :!l,r.  S4. 

"  (ilBliA,  var.  veiitricosimi,  (inm. 

Ti'i«;ii)A,  VMis..  Ku.,  K.  B.,  8.  (.  14 :  Riil..  S.  l\  1,  f.  11  ; 
I'rit.,  7fil,  4.  f.  !  ;  J»,  f.  loH   Ifil  and  11,  f.  IS;  Sin. 
S[).  T.,  No.  l.')0. 
"  .\K(US,  Ku.,  K.  B.,  UK,  1'.  V),  .-)»);  Kal..S.  D.,  1,  f.  ;W ;  S. 

B.  I).,  1'.',  f.  .^i;  Prit.,  7oit,  1.''.,  t    11:  Sni.  Sj..  T.,  N... 
149. 
Misci'Ms,  Kr.,  K.  B.,  ;{0,  f.  «:S.  B.  F).,  14,  1,  f.  10; 

I'ril.,  7ti(),  13,  f.  IS;  Sm.  Sp.  T.,  .No.  151. 
I'ONHTKK TA,  .S.  B.  D.,  20,  f.  24s  :  V.  H.,  H2,  f.  l(i-lS. 
ocEi.i.ATA,  Kk.,  K.  B.,  29,  f.  57  ;  Kab.  S.  I).,  1,  f.  25;  .'<. 

B.  L).,  p.  i:;,  i,r.  ti. 
soKKX,  K>r.,  K.  B.,  5,  f.  12;  Rait.  S.  D,  1,  f,  7  :  S.  B.  D.. 
p.  K!,  1,  f.  9;  V.  H.,  ;i2,  f.  6-10. 
"  fiiHBERULA,  Kj,'.,  K.  B.,  29,  f.  54;  Sm.  Sp.  T.,  No.  (152. 

ZKBUA,  K.  B.,  5,  f.  11 ;  Kab.  S.  I).,  1,  f.  8  ;  S.  B.  D.,  1,  f.  4 ; 
V.   H.,  ;il.  f.  9-11-14.     E.  zebra  m  only  a  var.  of 
E.  arguw. 
Fig.   34.  '•  TENTRKUi-A,  K.  B.,  29.  f.  53;  Rab.  S.  D.,  1.  f.  13. 


(I 

"<,  9. 

ti 

10   !.".. 

t( 

14-17. 

If 

IH,  19. 

" 

20,  21. 

II 

22,  23. 

24,  25. 

2«-28. 
29-33. 


!! 


I'iMt-     WW 


PLATK  XXXVT. 

KtKuren  luaKnltled  -iOU  (ItHinetera, 


FiK-    1-H.        Khithkmia  AHUiiH,  lurge  IbriiiH.     Coriipiir*'  1*1.  M,  f.  14-17. 

KigB.   4,  12.     KuNOTiA  MONODUN.  Khrl).  Mik.,  ay,  3,  f.  4() ;  Sill.  J.,  May,  184»i,  2, 

I".  3«;   May,  Im5|,  f.  27. 
i>ioi>oN,  Khrl..  Mik.,  17,  f.  28al);   iti,  2,  f.   IH.  K.  B.,  T),  f. 

24.     Variety  of  robimtH. 
"        TKU.uoN,  Khrl..  Mik.,  .'{9,  3,  f.  ft;  Id,  2,  f.  2(1     Prit.  7«3,4. 

I'.  4.     Var.  i)f  robuwta. 
"         itDHUWTA,  var.  tt'trotltm,  KalfK,,  Prit.,  p.  7tiH.     Striue  nion- 

iiiti>riii. 
''         HoiiiwrA,  var.  papilio,  I  Khrlt.)  Rallk.,  <rrun,  1H(!8,  p.  94. 
"         KOHUHTA,  var.  (iiaiii-iiia,  (Klirii.)  Kalt'ti.   Mik.,  16,  3,  f.   17; 

It).  1,  I'.  33;  K.  B.,  ■),  (.  28. 
"  Compare  ti^.  4,  iiiofKHlon,  KInli 
"         ROHUSTA,  var.  Iteudeoaodo",  (Khrb.)   Kallk  Mik.,  Iti,  2,  f. 

:^(»;  17,  1,  f.  38;  Prit.,  7(14. 
"         i.i-x'AoDON,  Ehrb.  Mik..  ItJ,  2,  C.  29;   17,  I,  1'.  .'17  ;  Sill.  .1., 

Jan.,  1842;  K.  B.,."),  C.  29. 
"         PwmNALlH,   KK',  var.  cnrta;   V.  H.,  p.  i4;J,  33,  f.  15;  C  ' 

and  M.,  No.  234. 
"         I'Ef'TiNALis,  Kk  1  var.  Htricta,  Kab. 
''         PE0TINAM8,  Kg.,  var.  elongata ;  Kg..  Rati.,  ntriae  monili- 

lorm. 
"         nioDON,   Ehrb.,  iarne  form.  Sill.- J.,  May,  1842,  2,  f.  29, 

K.  B.,  5,  f.  24,  S.  B   I).  2,  »".  17 ;  compare  figs.  5,  6. 


It 

/),  «. 

a 

7,8. 

Fig. 

9. 

i> 

10. 

it 

11. 

u 

12. 

l< 

13. 

<■ 

14. 

Figs 

15,  1«. 

l( 

17,  18. 

Ik 

19,20. 

21,22. 


I'Uito  XX.X\I 


I  1 


i| 


1 


m ! 


PLATE  XXXVIT. 

Figures  raagnllled  jfH)  diameters 


Fig.  1. 


\i  \  ■■■' 


4. 


0. 


FiK8 

<i,' 

Fi«. 

1». 

« 

11. 

(• 

12. 

a 

13. 

ti 

14. 

i( 

15. 

« 

16. 

u 

17. 

18. 


It 

J'.<. 

it 

20. 

Fi^s. 

21, 

22. 

K.«. 

23. 

Figs. 

24, 

2.5. 

Fig. 

2(). 

Fiifs. 

27, 

28. 

4t 

29, 

30. 

EIrNOTiA  POLYDON,  Elub.  Mil<.,  17,  1,  f.  45;  Prit.,  7«4 

8ERRA,  Elu-b.  Mik.,  16,  1,  f  35,  a,  b;  2,  (.  31,  17  ;  1,  f 
.S9,  40,  Hill,  ,J.,  May  1842,  p.  100,  2,  f.  33,  K.  B.,  5, 
f.  30. 
"  MONOOON,  var.  depressa,  El.rb.  Mik.,  14,  f.  o^ ;  1")  a,  I'. 
6,  8,  b.,  Abh.  1869,  2, 1.  f.S;  1,  G.,  f.  3,  K.  B.,  29, 
f.  39. 
Fragilakia  Dimereghamma?  (lubia,  Grun.,  1862,  p.  873,  7,  f. 

28;   V.  11.  36,  f.  18. 
EuNOTiA  CYONUS,  Ebrb.,  Ai)h.,  1869,  1  <1,  f.  3;  1  a,  f.  2;  1871, 
1  1),  f.  28. 
10.  iVcTiNEi.LA -PUNCTATA,  Lewis,  N.  and  J.  forms,  p  .343,  1,  f.  5,  V. 
H.,  3.->,  f.  18.  21. 

I>I()DE8MIS. 

Rhai'HONKIs  cocconkis,  Kliib.,  .Villi.,  1869,  p.  .ri,  2,  1,  f.  7. 
8cBi*TR(i>fEis,  XirascHioiDFS,  (tfun.,  V.  H.,  37,  f.  4. 

'  CADUCEUs,  Ebrb.  Mik.,  33,  17,  f.  1.");  Sill.  J.,  April 

184.5,  f.  11,  Prit.,  772,  4,  f.  11 ;  V.  H.  37,  f  .5. 

GEMMATA,  Grui).  .J.  Q.  C,  1871,  p.  170,  14,  ('.  4,  5. 
Rhaphoneis,  pretiosa,  Khrb.,  T.  M.  S.,  1854,  6,  f.  9;  V.  H.,  36, 

f.  25. 
"  tJCALARis,  Ehrb.  Ber.,  1844,  p.  271 ;  V.  H.,  36,  f.  32. 

"  GKMMIFEKA,  Ebrb.  Ber.,  1844,  p.  87  ;  T.  M.  S.,  1854, 

6,  f.  7  ;  V.  H.,  36,  f.  31.     PVobably  a  var.  of  amplie- 

aros. 

AMPHicERos,  Ebrb.  Mik.,  33,  20,  f.  20 ;  33, 14,  f.  22 ; 

Frit.,  p.  791,  l4,  f.  21  ;  Sm  Sp.  T.,  698 ;  V.  H.,  36,  f. 

22,  23. 
"  A.ttPHiCERos,  var.  Californica,  <  rnin.,  V.  II.,  36,  f.  24. 

"  "  Ebrb.,  tyjiical  form. 

"  ">  v:ir.  rbdiiil.ica,  (Jniii.,  V.  H,  36,  f.  20, 

CocooNEis*  M<iK.M«iNoui'M.  Klirli..  Abb.,  1870, ,53,  2,  1  f,  4i5. 
Meridion  i;iki n.Ain:,  Ay.,  K.  B.,  7,  f.  16;  Rab.  S.  I).,  1,  f.  I  ;  S. 
B.  D.,  32,  f.  277  ;   i'rii.,  767,  9,  f.  177-179. 
"     ,     iNTKKMKDir  ti,  Viir.  constrictum,  H.  L.  S.,  A.Q,  J.M., 

1n78,  p.  12,3,  f.  2. 
"  ciRt'TLAKK,  side  views. 

.Side  views  of  iiiter'iiediiim.     Fig.  26  showing  the  lon- 
.striction. 


\'\n\o  .\.W\- 


ii. 


OK 


ii  I 


ri.ATE  XXXVTTI. 


FiBurt's  iiiitu:iiilleil  .VK)  illiimelcrs. 


Fi«.    1-4.  Ki'NoTiA  MA.ini!,  Willi.,  V.  H.,  'M,  r.  14;  (Inin.,  18K5,  p.  ft,  1,  f.  8. 

"      •').  "         PRAKKii'TA,  Khili.  Mik.,  n,  1,  To;  3,  2,  r.  14;  RaK,  S. 

I).,  p.  If);   V.  H  ,  '^4,  f.  19.     Striae  Kianiilatt!. 
"         I'KAKRri"!  \,  viir.  inoiKulon. 

i)iy,V(iA,  Kl.rl...   K.  Amer..  2.  I,  f.  S;  K.   B.,  29,  C.  51; 

Kiii^.,  s.  I).,  1,  r.  ;;(i,  h.  .i.  n.  h.,  p.  :«3,  r.  27. 

"  .ilHBOSA,   V.  M.,  S,  30,  f.   Wi. 

nii>KNTi'i.A,  S.  R.  I).,  II.  ]..  s;;;  V.  H.,  M,  {.  28. 
"         Bactuiana,  Khil..  Mik..  1,  f.  29;   1(1,  11,  f.  I'.t,  LewiH, 

w.  M.  I).,  !;!,•->,  f.  IS;  V.  11.,  :!4,  r.  32. 

"         I'OLYCii,^  I'liis,  ( iiini.,  vjir.  Iii'xuiflypliis,  Elirl).;   \'.  H., 

34,  .    33. 
"  I'KcriNALis,  v;ir,  U;ili..  I'unip.  V.  H.,  33,  f.  lo,  Ki. 

"         MA.ioH,  var.  l.i(I.'ns;   \'    M.,  34,  t'.  !•'). 
•'         I'ARAi.i.Kl.A,    Kliri.,  Mik,.  lo,  f.  .-)8 :  .3,  2,  f.  11  ;  Hill.  J., 
.Mii.v,  I.S42,  p.   100,  2,  f.  32;   V.  U.,  34,  f.  1(1.     Not 
sfparalili'  IVniii  Iv  major,  lii;-.  4. 
l.lNAKis,  vai-s.  Khrli. ;    V .  H.,  3.').  f.  .3,  (la,  4. 
"  l.UXAliis,  var.  f.xcisa  ;   V.  II.,  .'!•'),  I',  tic. 

"         KoKMi.A,  Kliil..  Mik.,  4,  3,  f.  19:  3,  4,  I'.  iS;  4,  1,  I'.  13; 
.Mill  .  ls(i!),  2,  I,  f.  12;   V    H.,  34,  (.  1. 
i.Mi'HKs.sA,  Khrl..  .Mik  ,   15,  f.  titi:  3.  4,  I'.  20:  •'),  2,  f.  8; 
2,  2,  f.  30. 
"         DECI.IVKS  Kliiii.,  K.  .\iiM'r.,  2,  1,  f.  3;   K.  M.,  29,  f.  62; 

Kal..,  1,  2(1. 
"         INCISA,  (freg.,  M.  J.,  lS.-)4,  p.  94,  4.  f.  4;   Kowis,  W.  M. 
I).,  p.  13,  2.  f.  12:  V.  ».,  34,  (.  3.-)a. 
THiDENTiJLA,  Kliili.  .Mik.,  39,  3,  C.  :A  ;  ,SiIl.  .1..  IHol,  f. 
88:   K.  B.,  29,  I'.  (10,  Hal..,  S.  I).,  1,  f.  IH:  V.  H.,  34, 
r,  2,  7,  K.  Klirt'iil)fi<;ii,  RalCs. 
/YfiOix.N,  Khrl..  Mik.,  1(1,  13,  f.   l-".:    17.  1,  f.  27,  28;   K. 
r..,  29,  f.  »!i. 
'•         I'KN TA(ii,Yi>Mis,   Khrii.  Mik.,   Ill,  2.  1".  22;    17,   1,  f.  32; 
l.i-wis,  W.  M.  I)..  13,  2,  r.  4. 
M(..-is,   Elirl..,   Al.h.,   1M70.  .".4,  3,  I'.  7   10;   1871,   IC,  f. 
13;    1370,  2,  1.  f.  •'..'). 
•'         SKKRII.ATA,  Knrl..  .Mik.,  Ki,  I,  I'.  3(5;  16,2,  f.  .32 ;  17,  1,  1'. 

40.     (Vars.  c.f  K.  rol.nsOi.) 
•'         I'NDKNARIA.  Khrl..  Mik.,  33,  10,  I'.  12,  I'rit.  764. 
Note. — Ki^s.  2o-29,  Ralls  iinite.s  as  varieties  cil'  K.  Khrenl.ernii,  varying  only 
in  having  one,  two  or  more  iindiiiiitioiis. 


"  6. 

"  7. 

,  "  8. 

'•  10. 

"  11, 

Figs.  12,  IS. 

Fig.  14. 

"  lo. 


Figs.  Iri,  18,  19. 
Fig.   17. 
Figs.  20,  21. 

Fig.   22. 


"      24. 
Figs.  2.'),  2(1. 

"      27,  2S. 

"      29. 
Figs.  30,31,32 

"      33,34. 
Fig.   3o. 


i 


' 


HUte  XXXVllI. 


I'M 


PLATE  XXXIX. 

Ktx*!!'*'"  iiiagnifleii  .'KK*  (lltuiii't<>rs. 


; 


Fig. 
Figs. 

Via. 


1. 
2,H. 

4. 

5. 


8. 
9. 


Figs. 


Figs. 


Fig. 


10,  11. 
12. 

i:i,  14. 

lo. 

16.' 

17. 


Synedha  RowrsTA,  Ralfs,  Pril.,  7M9,  8,  f.  :?;    V.  H.,  42,  f.  67. 

TRYSTALLINA,  Kg.  K.  B.,  16,  f.  1  ;  S.  B.  D.,  74,  12.  f.  101 ; 
V.  n.,  42,  f.  10. 
"         Kr  LOANS,  W.  S.,  S.  B.  D.,  74,  12,  f.  KW;  I'rit.,  789,  IH,  f. 
20 :    M.  D.,  13,  f.  24 ;   Sm.  S|).  T.,  No.  .556. 
CAPITATA.  El.rb.  Mik.,  39,  3,  f.   114;  17,  f.  251),  3S;  K. 
B.,  14,  f.  19 ;  Ral).  S.  D.,  o,  f.  6;  S.  B.  I).,  72,  12,  f.  93  ; 
Sm.  Sp.  T.,  No.  547.     Striae  of  endu  loo  radiate  in 
figure. 
t'N'niLATA,  Greg.,  S.  B   IX,  II,  p.  97  ;  V.  H.,  42,  f.  2 ;  Sin. 

Sp.  T.,  f>86. 
LON<{issiMA,  W.  S.,  S.  B.  D.,  72,  12,  C.  95;  Sin.  Sp.  T.,  No. 
564,  565. 
"        ULNA,  var.  longissinia.  W.  S.,  S.  B.  D. 
"         FDLGENS,  W.  S.,  (.\rdis8onia  f'ulgens.  Kg.),  S,  B.  D.,  74, 
12,  f.  103;  Frit.,  789,  13,  f.  20;  M.  D.,  13,  f.  24;  V. 
FI.,  43,  f.  42. 
Gallionii,  Ehrb.,  K.  B.,  30,  f.  42;  28,  f.  36;  S.  B.  D.,  30, 
r  265,  Prit.,  788,  12,  f.  34,  36. 
"        ONYRRHYNCHU8,  (wde  Small  form).  Kg.,  K.  B.,  14,  f.  82; 
Rab.  S.  D.,  5,  f.  23 ;  S.  B.  D.,  1 1,  f.  91 ;  Sm.  Sp.  T., 
No.  570. 
"         RUMPEN8,  Kg.,  K.  B.,  16,  f.  6;  Rab.  S.  D.,  5,  f.  8;  V.  H., 
40,  f  14. 
INVECTANS,  W.  a.,  S.  B.  I ).,  p.  98 ;  Sm.  Sp.  T.,  No.  560 ; 
V.  H.  40,  f.  33. 
"         VACCHEKiiE,  K.  B.,  14,  f  4,  Rah.  S.  D.,  5,  f.  15  ;  S.  B.  I)., 

II,  f.  99;  V.  H.,  40,  f.  19. 
"         RADIANS,  magnified  only  about  one  half  as  much  as  the 
other  figures.  Kg.,  K.  B.,  14,  f.  7  ;  Rah.  S.  I).,  4,  f.  40; 
Sm.  Sp.  T.,  No.  574 ;  V.  H.,  30,  f.  11. 


I'lui..  \XX1\. 


s 


:l    I 


i 
'I 


il   11 


ii 


PLATK  XL. 

Kicurcs  iintK»)tlc(i  •">""  illmneterK. 


FiK.    I. 


•      4. 


FiitN.  H,  7. 


8,  !•. 


Fig.    lO-lM. 
•'      14-17. 


'•      IS. 
Figs.  l<»,  20. 
Fig.  21. 

Figs.  22,  2;^. 
"      24,  2'). 

"      26.  27. 

"      2H,29,»0, 
Fig.   .SI. 


32. 


NiT»»rHiA  sPKcTAHiLis,  Ralfs,,  Prit.,  j).  7S2.     Morv  properly  .V. 
nmphionyi^;  vnr,  speetabiliH,  H.  L.  S. ;  striae  nxm- 
ilifonn,  V.  11.,  67,  f.  S. 
"  i.oNiJissiMA,  iJnin.,  18t)2,  \t.  "iSl  ;  M.  0,    :!,  f,  11  :  V. 

H.,  70,  f.  l-:{  =  birostratn,  W.  S. 
"  i.oNOissiMA,  tbriiiii  |>arvn  ;  V.  H.,  70,  f.  li. 

"  sKiMA,  S.  H.  [).,  13,  f.  lOS ;  Prii.,  7.S1,  4,  f.  21 ;  Sm.  Sp. 

T.,  No.  ;567  ;  V.  H  ,  tir),  f.  7,  S. 
"  SKJMA,  ronime  eloiigatae;  V.  H.,  ()(i,  I'.  7. 

'■  SIGMA,  vars.  rigida,  (inin.,  and  rigiduia,  (inin. ;  V.  H., 

66,  I".  ."),  8. 
"  I,A\('K.(.|.ATA,  .'^.  M.  1)..   N,  t'.    llS;  T.  M.  >..  iStUt.  p. 

is,  -1.  r.  2U:  M.  1).,  l.'i.  f   Id:  V.  H  ,  OS,  f.  1-4:  Sm 
Sp.  T.,  No.  ;'>"i'_' 
ci-osiKiui  .M,  S.  I{.  1».,  j.^,  t    12(1:   V.  M.,  70   f.  .">,  7,  s, 
9'  FAscici  i,Ai  A,  (inm.,  ISTS,  p   21  :  \'.  M.,  tit'.,  f.  11-13, 

=  licimci'iicladia  si<;inoidca  :  S.  H.  I •.,.")."),  1",  340: 
^111.  Sp.  T    Nos.  lO'.t,  2on. 
"  (  i,(WTKRli'M,  sniidi  ronii,  ride  Wa.  Id.  i;i. 

TKNiMs,  S.  H.  I).,  l;i,  f.  ill  :   V.  H  ,  i>7,  r.  1(1. 

SvNEnHA  hAcKdi-AiA.  Kg.,  K.  H.,  3o,  f.  31  ;   Hall.,  S.  I).,  4,  I".   14, 

18.   (oiiipare  nmie  vlonnatetl  torm,  Plate  41,  f  9. 

Ni'rx>ciiiA  FUisriM  M,  H.  h.  S.  p.  N...  342:  V.,  H.,  68  f.  28,20. 

(•(iMMiNis,    Kail.,  .\li;.,  Sacliv.,  049  and   843:    (inm., 

I8t>-J,  p.  •">7.s,  12,  r.  IM;   V.  II.,  60,  r.  .32. 
I'AS.KA,  N   S.,  .S.  H    I).,  p.  SO,  (Mini.,  1S62.  p.  ■")79,  12, 
f.  3:   V.  H.,  tiO,  r  2'.',  I..r.,  Sm.  Sp.  T.,  No.  .361. 
Synkdra  I»am(  a,  K.  15.,  14,1'.  13;  Sm.  Sp.  P.,  .■»40;  V.  H.,  38,  f.  14. 
"         M)N(ii(.;KP8,  Elirb.   Her.,   Is4.'>,  Prit,  7S8  :    Sm.  Sp.  T., 
Nil,    564,    =  capil'tia,  witli  stilil'orm    prfwhicetl 
afiii'es. 
i,o.N<iissiMA,  S.  B.  D.,  12,  r.  05;    Sm.  Sp.  T.,  No.  564. 


1 


i 


PLATK  Xrj. 

KiaiiifS  iiiiimiiilcil  .")iN>  (liiiiiicfoi'j 


: 


PiK.   1. 
Fi»p.  5.  6. 


''ig- 

7. 

t( 

8. 

t( 

». 

ii 

lo- 

ll'. 

Ki^s 

13,  14. 

KiK. 

15. 

U 

U\. 

Fi«8 

17,  18. 

n 

19,  20. 

Fig. 

21-23. 

Figs 

24,  25. 

Fig. 

26. 

t( 

27-29. 

U 

30. 

t( 

31. 

u 

32. 

* 

■  u 

33,  34, 

Synkdr.v   si"ATnri,ii  I'.u^,  (iniii;  .9.  ulmt,  var;  V.  II.  ;!8,  t'.  4. 

Acrs,  Kk.,  K.H  ,  In,  r.  7  ;   Riid.  S.  1).,  .-i,  f.  42;   V.  H.,  39. 

f.  4.     Mijjht  nil  pa*t«  for  S  iiIidi,  vnr. 
"  Davica,  (iilnii,  var.),   K.B.,   14,  f.  LS;   Kill).  S.  I).,  p.  54; 

8in.  Sp.  T..  549 ;  V.  H.,  38,  f  14. 
"  OHTUSA,  S.  H.  D.,  11,  f.  92;  Sm.  Sp.  T..  Xo.  .Jti9. 

viTREA,  K.  H..   14,  f.  17;    Rab  S.  I),  5,  f.  24.     .S'.  m/tmi, 

var.,  V.  H.,  88,  f.  12. 
''  LANC'EOLATA,  .S  uliw.  var., V.  II.,  38,  10.     (lotnpare  plate, 

3(),  f.  21. 
AFFi.vis,  K.   H.,  1.").  f.  «,  24,  f.   1,  o;  S.  B.  D.,  12,  f.  97 ; 

V.  H.,  41,  f.  13,  14.     Fig.  10,  genuirui  forma  parva; 

P'ig.  11,  var.  aeiiminala,  (xnin  :   Fig.  12,  var,  grneMU, 

(rriin. 
"  iitcEHS,  f.  and  s.  viewx,  K.  B.,  14,  f  is,  21  ;  Rali.  S.  D.,  5, 

f.  9;  Sm.  Sp.  T.,  No.  545.     Fit;.  13  a.,  smaller  form. 
"  .\Mi>HiRRHYNCHn.s  Fhrh.,  K.  B.  14.  f.  15;    Rab.  S.  D., 

5,  f.  .57  ;  V.  H.,  .38,  f.  5. 
"  FUU'HELLA,  forma  major,  K.  B.  29,  f.  87  ;  Rab.  S.  D.,  5, 

f.  17  ;  8.   B.  D„  30,  f.  84  ;  Prit.,  p.  786,  4,  f.  28  ;  Hm. 

Sp.  T.,  No.  -.73. 
"  PULCHELLA,  var.,  genuina,  Kg.;  V.  H.,  40,  f.  28,  29. 

'•  cROTONENsis,  (Edvv.),  Grnn  ;  V.  H.,  40,  f.  10;  var.  pro- 

longatn,  Griin.     U'<nally  hyaline,  often  flcxuose. 
"  ACUTA,  Ehrb.,  =  {Ulna,  var.  acuta,  H.  L.  S.) ;  Mik.  39, 

3,  f.  118,  119,  6,  1,  f.  3a.  b.  etc.;  K.  B.,  30,  f.  49;  Rab. 

S.  D.,  0,  f.  23;  Sm.  Sp.  T,  541. 
"  suPERBA,  i:.  B.,  15,  f.  .3;  S.  B.  D.,  12,  f.  102;  Sm.  Sp. 

T.,  No.  578. 
'  PULCHEt-LA,  (/'ompare  Figs.  17,  18. 

INVESTIENS,  S.  B.  D.,  p.  98;  V.  H..  40,. f.  33  c. 
"  ACUTA,  Comf)are  Figs.  21-23,  above. 

"  ULNA,  var.  vilren,  (bmpare  Fig.  8 ;  V.  H.,  38,  f.  11,  12. 

"         suPERB.\,  Compare  Figs*.  24,25.     Two  small  clusters,  seen 

under  lower  power. 
"  AKFixis,  var.  with  ends  moie  than   usually  blunt,  aud 

more  than  ordinarily  inflated. 


I'l.lh 


XI, 


E 

1 

' 

3            i4 

1 

i    i   ^ 

9 

si 

1             ^ 

t 

|l 

If 

i 

h 

h'    1 

22 


80 


I 


II 


I 


f 


FiK.    1. 


Nir/s(  II 


V'lii'i.  •_',  :!. 

u 

FiK.   4. 

i( 

"        r,. 

« 

KigH.  fi,  s. 

t; 

Fiir.  " 

u 

Fi>?s 


FiK. 


10,  II. 
12-15. 

Iti.  (21). 
17. 

18. 


FiK«. 

19,  20 

Fig. 

21. 

K 

22. 

II 

2H. 

PLATE  XLU. 

f'lKuroM  miiitnlfted  <j()0  diameter 


I  \  V  M.iDA,  fi>riii;i  lnni;iH,«imii,  Clcvc.  ninl  Griin.,  lft7H,  p.  12, 

:?.  f.  Ill:  .1.  M  ,  1H7!).  |..  -.VA,  2.  f.  !!»;  V.  H..  «ir,,  f.  4,  ■■). 
jtiirts  (irsiiiiic  seen  under  higher  power,  iiKout  "•,"". 
MA.ioH,  (irnn..  V.  H.,  (>\  I,  H.  (N.  .Siirmii  viir). 
partH  of  sHiiie  imdcr  liiuher  power 
Hrebiswomi,  S    H.  D.,  M,  {.  23«;  V.  II.,  rt4.  f.  4,  5.    Firs. 

■<h(iiil(l  lie  heiiilcd  alonif  tlie  edye. 
oiiTi'SA,  Niiiitllei'  fiirtii,  eoriipnre  liy;.  18. 
sHJMOinKA,  S.  R.  I).,  l.S,  f.  104;   Prit.,  781,  7,  f.  148;  V. 

H.,  (W,  f.  .".-7. 
8IOMA,  S.  R.  !).,  in,  f.  lOS ;  Prit.,  7M1,  4,  f.  21  ;  V.  H.,  «:., 

f.  7,  h  ;  Sin.  Sp.  T.,  No.  3(?7. 
VKRMTiii-ARis,  llant/,,  Frit.,  p.  781  ;  V    H..  H  f.  1,  2. 

All  aresntall  forniH  of  sigmoiden. 
viTRKA.  N'.nni.,  T.  M.  S.,  1861.  p.  7,  2,  f.  4;  V.  H.,  fi7,  '. 

10;  Sni.  Sp.  T.,  No.  37«. 
LINEARIS,  S.  n.  D.,  1.3,  f.  1 10  an.l  .'51,  f.  110;  V.  H.,  «7,  ( 

l.S-l");  Sin.Sp.  T.,  No«.  353,  ;(.")4.     StriiP  tine  and 

liffht.     Fig.  too  heavy. 
ORTtTSA.  S   R.  [).,  i:^,  r.  109;  V.  H..  .J,  f.  1 ;  Sm.  8p.  T., 

No.  3.")S.      I'/V/c  tiif.  7. 
DIH.SIPATA,  Kali.  \\n.  Saehv.,  N(».  948;  V.  H.,  «.'!.  f.  1-3. 
VITRKA,  Norm.,  forniH  major.      Viile  (ig.  Ifi. 
LINEARIS,  Vide  tig.  17. 
VITRKA,  Normal  forin.      I'tV/e  li^s.  l(i,  21, 


Plat.,  xi.ir 


n 


n 


■i 


•'     '      V 


M'l 


n.A'rK  \Mii. 

■''luiii'i'-  iiiiiunltli'il  'iiNi  illaiiii'ti'i'x. 


( 


i 


Ki«.    I. 


l-'ilfx 


I'ii;. 


•J,  ;s. 

4. 

■"',  '■'. 
7.  s. 

10. 

11. 

12   I  I. 


Nir/.-ciiiA    1'kiii..i:iiii,  <;rmi.  .1.  It.  M.  S„  isMo,  |,.  :«)(;,  i:!,  f.  j.'.. 

('ami'Kmmkxna;  <inm.;  .1.   H.   .M.S.,  IHso,  |,,  ;;i(.-,,  l;;, 
f.  If!. 
"  -.  M.KIH.HV,   (}|im.;   ,1.    R.    M.   ,»>!.,    1HS(»,    p.   .Sft.-),   I2.  f.  .!. 


•• 

1-. 

Kigs 

Ks  17 

Fin. 

Is. 

II 

Ut. 

ii 

•J(i. 

(1 

21. 

Figs 

a2, 2n 

r«K. 

W  2(5. 

ii 

27    -'0 

«^ 

H(i. 

k( 

;tii  •{.{ 

.Mii.'d  lo  .V.  I 


irillKUITI. 


I"ln 


llll.lill  \  I  A, 


I!.  I)..  1.-.,  1.  ii;{;  V.  !i.,  (1(1,  r.  i; 


Sm. 


Sp.  \\,  N...  ;in.- 


••rAriHi.\TA,  Hrfl..;  S.  I!.  I).,  .".l,  t.  JCS  ;  Sm.  S|..  T.,  No. 

:i7(t:    V.  II.,  liJ,  I'.  7.  H. 
s.M,AHIs  \V.  S.;   S.   I!.   !>.,   II.  f.   II.-,;    I'lil.  7SI.   J.  I.  •_'•.'; 


V.  II..  •!(».  I'.  II,  i; 


S|i,  'I'.,  No.  :!(l 


i,iM.\i(iii.\,  (Jniii.;  M.  M.  .1.,  Issd.  p.  ;\\)\  |;{,  (.  lO;  = 
Trjihlioiiel'n  i>ini<-tahi   S.  H,  I).,  lo,  I'.  7(>  m. 

«iii\\ii,AiA,(iriiii.,  M.  .M..I.,  IsMii,  p.:{!i.\  12,  f  7.  N<.| 
.V//-.w/iiV(  ;    H;iyicv's    I'YMDItll.v   rnMIM!r.»A,   Mir. 

4(1,  2,  (.  I;;,  11;  Sill.  Si.,  t..  Num.  i;i(>,  4;u. 


<>l> 


I' 


( N;iv:iiin;iti 


Kimthk.mhiihk^,  (irmi.;  <  icvr.,  lHs(),  p.s-j;   \'.  II., (1(1,  f, 


(1-8. 


IIII.OBAI'A,  small  (iirm,  nrlr  hit;.  •),  ti. 

A.  (iriin.;   \'.  II  ,V.»,  t.  24 ;   =  .\.  Thfriiiiili^,VAV. 


i.nroHK 

I  tU.lOUIA.  (rnin. 


(It 


IHHd,  p.  JSSt;   V.  M.,  (12,  f.  lit. 


MA.irsciKA,  (Jrmi.;  Clcvi'.,  I8H0,  p.  »7  ;   V.  H.,  (12,  I'.  •'>. 

(Jldsi'ly  allied  in  jhimini^miK.     (.'ampi'acliy  lijiy. 
I'Muii.NKNsKH,  (irmi.:  1.S82,  p.  oSl,  12,  I'. :'."»;   V.  II.,  112, 

I'.  ;i.  4.     Striae  munililurni. 
siNUAiA.  (iruti;  Cli've.,    ISSO,  p.  S2  :  \'.  II..  «(»,  f.  11; 

=   Deiiliniln  Hinunta,  \V.  S. 
■rAiiKM.AliiA,  (•run.,  ( 'leve.,   IHSO,   p.  S2  ;  =  Deiilicvhi 

lahfllarid,  :^  .V.  .Siiniata,  var. 
A.wri.Ains,  S.   B.   1).,   IS,  f.   117;   V.   M.,  (12,  1".  11    14. 

Vifi.ib,  vi\r.  iicridenfidiR,  striae (ilili(pic.     (.'amp.  Buy. 
I'AKADoNA,  ((iiiiel),  (iriin  ;   \'.  11.  fll,  1.  (1,  7.  :=  Huril- 

lariii  parado.Ki. 
KirroNii,  H.  L.  S.;  \.  q  .1   .M..  ls7s.  p.  14,  .H,  (,  ^ 
OKNTici'i.A,  (Jrim.;  [Kn-),  W.S.;  \'    H  ,  «Uk,  I,  lO;  S.  B. 

I).,  M,  (.  292.     Not  r*»*U,\  ,>  .V»»;*7i/./  Init    Dnilinila 

l,nm»,  s.  B,  I).  .•<4,  (.  2»». 


I'Ule    XI  .ill 


: 


'! 


il 


1 


•f 


i  1     ■•.■ 


5    i:i 


il'l: 


Fi 


.«>*• 


1,-J. 

.S.  4,  i<)i. 
•'','!.  (II). 


FiK. 


VigH. 


!l. 

« 

10. 

K 

11. 

1. 

1-J,  1.".. 

'• 

Fig. 


14,  15. 

It),  17. 

15,  19. 

'JO,  21,  22 

2.".. 

24. 


PLATK  XMV. 

Fiijiii'i's  iimt'.iillod  'A*)  (liaiiiclci^ 


Xmscmv  PLANA,  S.  H.  1).,  IT),  f.  114:  Sm.  Sj..  T.,  No.  'M'.l;  V. 
H.,  5S,  f.  10,  11. 
"  ivvNnimiKoKMis.  'Iny;.,  D.  C,  p.  ;")7,  (i,  f.  102:  V.  II., 

.")■><,  f.  1  :?. 

1.1  IIIA..S  R.  I).,  IM.  i:!,  II,  r.  112;   V.  II..  .")!).  f.  H   12; 

Stn.  Sp.  T.,  No.  :{41. 
"  riitci'M.^i'TA,  (tniii.,  ("U'vi'.,  1S80,  p.  77;  \'.   H.,  f.  S. 

Tn-lilio'iellii  oinnm.siita.  Halt's. 
"  i.EviDKNsi.s  \V.  .S..  V.  H.,  57,  f.   1.V17;  -V.t,  f.  7,  = 

'rryl)li(ni('llii  li'vidt'iisis,  ifriiniiliitH. 
Conijiare  (igs.  ;>,  4. 
(•(lAKcT.^TA,  (irmi.,  \'.  H.,  o!l,  f.  4,     Piinctic  .should  lit> 

•■()ii,-s<>r,  '-'  Tryblionella,  viir.  coarctiilii. 
PflilA,  (Miiiipiirc  tif;s.  .'),  (). 
Ui-NoAiu.A,  Grmi.,  I.sti2,  p.  6t)S,   12,  f.  :'.l  ;  V.  H.,  ."),s, 

f.  \9-'l'I;  Sm.  S|).  T.,  No.  347. 
VI VAX,  <   B.  D.,  .SI,  r.  267  ;   V.  H.,  62,  f.  1.  2  ;  --  Nil. 

!tiii|)luonys,  viir. 
MAiuNA,  (rrun.,  V.  H.,  57,  I'.  26,  27. 
Avsi-STATA,  (in'g.,  Clove.,   1880,  p.  70;   V.   H.,  57,  f. 

22-24;  =- Ti  yhliotu'lla  antfustata  ;    S.   I',.   I».,  30, 

f.  2(12. 
I'L'NCTATA,  S.  B.  D.,  10,  f.  76;  30,  f.  261  ;   B.  .1.  N.  H., 

p.  344,  2,  f.  76  =  Tryhlioiu'lla  punctata. 
TKVBMoNEi.iiA,  Ilaiit/,,   V.   II.,  57,  1.9,10;  probahly 

the  same  as  Tryhlioiu'Ua  gracilis;  W.  S. 
Set  TKi.i.rM,   .S.    M.    I).,    10,  f.  74;    M.   I).,  13,  f.  .30; 

(markings    rather    too   ilistinct)   =   Trihlionella 

sciitelhini ;    W.  S.,    the  same  as   T.    circiuiisuta  ; 

\'.  H.,  and  called  liy  Bailey  .Siirirella  circinnsiila. 


Plate  :a,iv 


I 


f  ' 


hi 


M 


\l 


if 


!  ■  pi 


:.a 


f 


\i 


i  f  ) 


Imks.  1, 


3. 

4,- 

s.  < 

). 

.. 

l»t, 

11 

i 


Fig- 

rj-14 

K 

1.-). 

Figs. 

It),  17. 

•• 

IS,  lit 

1-ig. 

20. 

Fins 

21,  22 

(1 

23,  24 

TLATK  XI.V. 

Klsrmvs  iiiatiiiiili'tl  .Vki  tUaiiiclcrs. 


I'l.AOKMiR.v.MMA   IT i.cH Ki.M  M.   (iiev.;    M.   J.,    1 8")9,   |».   2(l!l,    1(»,   f. 
4-fi;   Piit.,   774,  4,   f.   .■>2.     Costae  are  Ipciulod. 

Ctll.  (illillU). 

"  PiUHKM.UM,  a  \»Mv  iartre  s|ifiiiiR'ii. 

DiMKIiKiiHAMMA   MAKINI  M.    Kalt's.  ;     Pllt.,  ]).  7!)0 ;    V.   H.,   'M),  (.  H. 
I'l,A(iI(MiKAMMA   l'Y(iMAKl'M,   (ilCV.  ;    M.    .1.,     IS.'i'.l.    Ji.  210.    KK   1.   11. 

Caiiip.  15ay. 
VAi.iDi  M,  liii-v. ;  M.  .1.,  l.S,-)!t,  p.  2Uy,  10,  f.  S.  Cai. 

and  ('ain|i.  Hay. 
(jiiKooKKAM'M,  (iiev.:   M.  .1.,  1859,  p.   VOS,   10,  f. 

1,2:  Jan.  aiid   Halt.,  p.  10,2.1'.  8.     "ostat-  are 

lieaded.      Moliile. 
oBKsiM,  (iiev.;   .M.  .1.,  l.S.")9,  p.  211,    In,   i.    12,    l.S. 

Charlestdn. 
"  r^lMNosiM.   Cieve.  ;    .\.    ]..    K.    I).,    p.    Is,   4,    f.    .')•"). 

Camp.  Hiiv. 
('AI.IFOKN'UI'.M,  (4iev.  ;  M.  .1.,  IS,")!),  p.  -Jll.  11),  f. 

l-')-17.     (.'^triae  iiionili.driii. ) 
TKs.-iEi,LATrM,  (irev. ;  M.  .1  ,  l.s.'i'.i,  p.  20S    l(t,  f.  7. 
oKXATi'M,  (irev.:   M.  J.,  1H.">9,  p.  209,   10,1'.  !» ;   V. 

H.,  3ti,  f.  3.     ("ostae  iiionilitonn  as  in  all  of  this 

jrenuv,  H.  I..  S. 
tii.Yi'HODKsMls  DisTAN.s  V.  H. ;  ;i(),  I'.  15,  It);  I  )iinere>;raniina,  t  iiey. 
Wii.LiAMsoNii,  W.  H. ;   V.  H.,  3t),  1".  14. 


\- 


I 


1^1  Hi  O     XI  iV. 


n 


<Jbh. 


I  -  u  >J  O  ^  o 

5ooo  0  o 
!<  o  0  o  o  0 

li 


t4 


1 


I 

I 

i 


t » 


.1 1 


II   1j 


1M-.\TK  XLVI. 

l''li;ill'i'>  iiiii«iillifil  .IdO  (liunii'li'iv 


Kiu.    1. 


>    ;i 


i 


I'igs, 


4. 
5,6. 


Fi>;.   7. 


"      i). 

"       10. 
"       11. 

Kius.  12-11. 


Kii:.    15, 

Ki^s.  I<5,(21, 

^•^) 

'•      17,  IS. 

"      19.  •'•) 

•       23-25. 

26,  27. 


Asi'i:HM)NKi,i,  \  Fdit.MOsA,  \ar.  siilitilissma,  N.  America '.' 
"  •■  var.  siil)tiiis,  (inin.     Lake  Krif. 

"  NOTATA,  (var.  of  Ulcakleyi)  (inin.;   \'.  II.,  ■">2,  I".  li. 

FOR.MosA,  var.  irraiillima.  Manl/. :   V.  11.,  •M,  f.  22. 
*'  "  var.  Kalt'sii  ;   W.  S,,  a  larjjeaiiii  a  mini- 

Htiirelorm;  S.  I?.  I).,  \,.  si  :  T.  M.  S.,   KSHO, 
p.  150,  7,  f.  it. 
"  HlkakeI.EYI,  VV.  S..  a  var.  ol'  A.  lonniixn  ;   S.    H. 

D.,  p.  S2:  T.   M.  .s.,    iS6(>  p.  15(1,  7,  f.   10: 
Lewis,  .N.  ami  K.  Sp.  p.  10,  2,  I'.  H. 
i'oRMu.-»A,  var.  uracilliina;   \'.  H,,  51,  t.  22:  S.   B. 
I).,  II,  p.  SI  ;  T.  M.  S.,  1860,  p.  14!»,  7,  f.  S : 
Prit.,  77'.t,  4,  f.  17  :  M.   D.,  4;i,  f.  14  ;  Sni.  S]). 
T.,  No.  4(). 
Dknthui-a  TiiKU.MAMs,  K.  B.,  p.  43,  17,  f  6  :  Halt.  S.  D.,  1,  I'.  H; 
V.  H.,  49,  f.  17,  IS;  Sm.  Hp.  T.,  N-..  12S. 
"  LAiTA.  Bail.  N.  Sp.,  9,  I'.  1,  2;  V.  II.,  49,  f.  1,  2. 

DiATo.MA  ANCKPS,  fniiit  view  ;  fiirs.  17,  IS,  end  view:  Elirli.  \'.  II., 
51,  f.  5-8. 
"         VTLdARK,  front  view:  Bory. ;  K.  B.,  17,  I'.  15:   Kali.  S, 
D,  2,  r.  6;  S.  B.  I).,  39  and  40,  f.  309:  Sni. 
.Sp.  T.,  No.  127. 
•'         K.voNOATUM,  end  view;  .\g..  K.  B.,   17,  ('.   18-   Kali.  S. 

!>.,  .-^'i,  2,  f.  1 ;  W.  B.  I>.,  40  and  41,  f.  31 1 . 
'■         Ehkkniikrgii,  eiiil  view  ;   K.  B.,  17,  f,  17;  Sni.  Sp.  T., 

N...  13:;. 
"         ANCKi's,  end  view  ;   \'.  H.,  51,  f.  5  S. 
"         I'Ki  TiNAi.K.  end  and  front  view:   K .  H,  17,  f.  11;   Kab. 

S.  I),  2,  \:  2;    V.  II.,  50,  f.  23  2t;, 
■'         KuKKNMiKiioii,  front  view,  compile  lij{,  16. 

IKNIK,  front  view:    \>.^  Sysi.  ;   K.  B  ,  17,  f.  9,  10;  Sill. 
J.,  1S.36,  2.  ;•    12. 
■'         loi.iiNUAif.M,  front  vii'w,  coiiiparf  liu'.  15.  . 


I'late  XIA'l. 


:       f  ] 


it 


tf 


\ 
\ 


i: 


'■  ^ 


! 


! 


P 

K^ 


I'  1 


I'l-ATK  XLVII. 

I'iyuii ■^i  inai;iilliiMl    iinI  illiiincli'is, 


Kiu.    1 


i 


u 

10. 

11 

II. 

.' 

i'J. 

VifiX. 

i:i, 

14. 

h\. 

I-".. 

Fios. 

Ki. 

17. 

.. 

IS. 

19. 

■IK- 


•JO, 
21. 


FHAiiii,.vniA  (  vi'i'i  iNA,   Ih'smii/,  ;   K.  H.,   Mi,  1.  S:   K;ili.,  S.  1  •..  I.  I'. 
•J;   S.  r,.   1).,  ;M,  f.  J'tti:   l>rit.,  77(>.  it.  (.   17:5;  Sin. 
S|..  T,  Nil.  I(i."i. 
viuKsKNs,  Riilfs.:  .\.  M.  I).,  1S4;;,  |..  IK),  2,  i.  ti :  K. 
B.,  1().  ('.  4 ;  Hah.,  S.  D.   1,  f.  1  ;  S.  H.  I)..  ».\  f.  2«7. 
i;iNoi>Ks,  Khrl.  :  .Vhli..  1841,  p.  4I.");  Mik.,  1«,  V.  f.  .S« : 
Mik.,  (■>,  I,  r.  4;  this  :iii<l   liirs.  !•.  !<».  rutiier  .ioiilit- 
I'ul  speiiies. 
iiKKl's,  Khrli.   Mik..  7.  "J,  I'.  9,    Hi;  7.  'A,  f.  -j;:,  'J  1 ;    14, 
r.  4»-.")l  ;   K.  IJ.,  p.  4(1. 
"  I'.VRAsiTicA,  (Jnin. ;   V.  H.,  4.").  t.  ;>(> :   var.  4"i,  I'.  '-'9 ; 

4t;,  f.  14. 
ruRuKNs,  Khi-tp.  Mik..  7.  I,  f.  s :   1,  ;;,  (.  s  ;   Aliii.,  isiiO, 
la,  f.  4. 
"  Hakrisonii,  (iiim. :   V.  II..  4o,  i. 'js. 

coNSTRUKXs,  (irun.  ;   V.  11.,  4o,  1.  •J7. 
IJRKVISTRIATA,  <Jnin.  ;   var.  Moriiii)ni>rniii  ;    \'.  11.,  45, 
f.  31-84. 
"  PAHADOXA,   Klnli.   Mik.,  38,   1").  f.   18;  M".,   14,    f.   10. 

Somewhat  (loiilitl'iil  spocii's. 
.Mi'TAmi.i>,  (iniii. :   V.  H.,  45,  t".  1"J  ;  Hran    Alp.,  p.  1 19, 
4.  f.  8.    FnistiiU's  colu're  strongly  hhiI  I'oriii  liamU. 
"  coNsTKrANs,  (Jnin. ;  Saini' as  ti^fs.  18.  14. 


Ki^s.  28--i6. 


Ki^;.    -Ki. 


AMPHK  KIMIAI.A,    Elllli.     Mik 


14,  t.    1-8:   Mik. 


I'. 


').  6. 


(Al/iPOKNicA,  <inm.  ;  V.  H.,  44.  t'.  Ij^  ;  a  var.  i>(  siri- 
atiila       Marine. 

Pacikica,  (4nni. ;  186-J,  p.  878,  S.  f.  19:  V.  11.,  8;>,  f. 
20-28.  N.  .\nu'r. '.'  No  Krajjilaria,  cuncale  antl 
allied  to  'IVaehyspliaenia,  It.  L.  S. 

KNTOMKN,  Elirl..  Mik.,  5,  .8,  f.  ."lO;    K.  I'..,  p.  i(i. 
•J7--J9.    l.irMoi'noKA  ki.aheli.ata,  S   B.  D.,  •_'(•>  ami  :!2,  I".  284:  .J.  R.  M.  S.. 


'  i«s- 


10,  81. 
32,  ;52a. 


1S79,  p.  Hsa. 
(iifAi  iLis,  (Jnin.;   Medw.,  \'l.  p.  84  :   \'.  II.,  4t'>,  I".  1.' 


(Al-IKORNK'A,  (JrUU. 


V.  H.,  47,  r.  1  I.    Si 


riae  uIiiuiik 


Fit;.    3.')-87. 


.Ii'R«KNsii,  .\^r,-  rii've.,  1880,  p.  1 1(1,  7,  r.  12o  :   V.  II., 

4(),  f.  10,  11.     Fnistules  not  Lent. 
TiNCTA,  (irun. ;  H<hIw.,  VI,  p.  8."»:   \'.  11.,  4S,  i.  18   i'l. 


Iivali 


ne. 


I'lair    XI  A' 


I 


ii 


f  I 


I 


i 


i 


i 


ii  I 


1»LATK  Xl.VIIl. 


I'"n:lll'i'^    linimilliril   .ilPII   (liilllH'liT- 


KiKS.  1-1. 

"      .").  6. 
"      7 -I-.'. 
"       1:5.  M. 

"       l.'i  20. 

Kite.  -^1. 

'•  22  LM. 

"  2.')-2S. 

"  29-.".  1. 

Im^s.  •■'.•>,  X',. 


ODONTinitM   MKsonoN,   K.   B.,  17,  f .  1  :    S,  I?.   D.,  34.  f.  2SS ; 

Sin.  S|).  T.,  No.  S82. 
"  iiYKMALK,   K.   B.,   17,  f.  -1;  S.   B.    1)..  :i»,  r.  2S1I; 

Sm.  Sp.  T.,  No.  SHI. 
"  Mi'TABiLK,  S.  B.  D..  34,  r.  290:  Sm.  Sp.    I'.,  \os. 

38;i,  H92. 
TiMsKr-A  [SlrlalHln)  iNTERltrPTA,  Klirl).;   K.  B..  18,  f.  4.     M.  ().. 

14,  f.  So;  Sin.  Sp.  T.,  No.  591. 
<  )iM>.\i  iDiiM  tahki.lakia,  S.  B.  I)..  :?4,  f.  291 ;  Lewis,  VV.,  M.  I)., 

p.  IS,  2,  f,  1,  2.     These  figures  represent  al)- 

normal  or  sporangial  forms  collected  liy  Dr. 

Lewis  in  White  Moiintiiin  pools. 
.\Mi'im>K<)RA  oRNATA,  Bail.  M.  ().,  p.  .'W,  2,  f.    l-"),  2;>:  V.  IL, 

22    bis    f.    5.     Compare  plate,  Kij{s.     Bail.'s 

figure  but  too  sniall. 
"  cAi.i'.Mi'rrir.'A,  List  of  diatoms  of  I^akc  Michifiaii, 

W.  VV.  Thomas,  Ciiicajjo. 
DicrvofHYA  forms  frequently  fonn<l  in  diatomaceoiis  material : 

no  longer  accepted  as  diatoms. 
A.Mi'iitcAMi'A  many  similar  siliceous  forms  found,  lir,t  cannot  be 

classed  with  diatoms. 

('l.IMACOSPIIAKS'IA     KI.ONGATA,    Fkil.     N.    Sp..  )).    8,    f.     10,    11; 

Frit.,  p.  772. 


PlHtoXLNin. 


iJ5iJiiL^vi__  aKq 


""-'  V  ^^  'r     \^    ^-^K   >--■  F 


^T^nrB:":'- 


riT 


Li.  L 


ifffiifiiA  ififinio  oran] 


1 


i      I 


. 


i  I 


1 


'I   I 


M*   i 


I'i   ' 


i 


.1 


FiK. 


n  r,. 


S   10. 

ii-i:',. 


(( 

14-16 

tl 

17,  IH 

Fig. 

19. 

Fiifs. 

•H)  •2.',. 

FiK. 


'24 -'2.'). 
2(J. 


I'M'^iii'i's  iiiiiuiiltli'(l  'iiKi  iliiiiiicii'iw. 


Orammatoi'hoka  HKRi'KNiiNA,  Klirtt.  Mik.,  8.)  A,  22,  I'.  14     K.  B., 

•29.  (.X-1:  S.  r,.  !).,  42.  f..S15;  V.  H..o:<.  f.  I    .!. 
"  iNDUi^ATA,  Khrl..  Mik..  IS,  f.  s? ;    l»,  f,  :!7  ;   K. 

B.,  21».  f.  t;8. 
"  (iiBJSA,  Flirlt. :   Atiier  ,  2,  ti,  C  -^ ;   K.  H.,  2!t,  f.  77  ; 

Frit.,  p.    SOS,    11,  f.  4s.     Fisf.  <>  riitluT  ion 

iiiiicli  inlliiled  ;it  ct'iiter.     Fis;.  7  iimv   lu'  ii 

viir.  of  iiiiiritiH. 
"  MARINA,  K.   B.,   17,  f.  24;  S.  B.   D.,  42,  f.  :;i4  : 

Frit.,  808,  4,  t.  47  :  Sin.  S|..  T..  N...  18S. 
"  a\(+i;loha,  Khrl).;  Ainer.,  1,  3,  f.   12;  Mil;.,  21. 

f.   18;   18,  f.  88;   K.   B.,  29.  f,  79;  :?0.  f.  79: 

=  Imtnalifera,  Kj;. 
"  marina,  M.  IX,  12,  P.  H.");  coinpare  tigs.  8-10. 

"  stricta,  Khrl).;  Anier.,  1.  1,  f.  22;  S,  7,  f  .SI  ; 

K.  B.,  29,  f.  7(j. 
"  (:arib.ka,  Cleve.,   1S78,  p.   14,  4,  f.  27;   V.   H., 

.■)S^  f.  19. 
V  skrpentina,  same  iiN  ti^.  1.     Shim  Her  form  ;  dolN 

on  tliis  species  mure  ret;iil:irly  (|iiii)('iinii   tliiin 
illustrated. 
"  .Mkxkana,  Khrl..;   K.  B.,  is,  f.  1  ;  29,  f.  i;7,  (iS; 

V.  H.,  5.32,  f.   11,  -^  marina,  vide.  fi>r  M-Ki. 
"  maxima,  Urun.,   1S62,  41(i,  8,  f.  "i :   V.  H.,  o.T-r 

f.  12. 


if 


i 


ii 


I'l.itoXMX, 


f 


I" 


: 


i>  > 


IM-ATK   L. 

hiuMiii'-.  iii'miilllc'il  •ii"!  cliiimcli'i'- 


KiK».  1   ;•!.  Tauki.i.akia  i  i:nk«tkata,  K.   \',..  17,  f.  -J'J  ;   IS.  f.  i';  ;!0,  I'. 

:;!;  S.   M.    F).,  4:5,  f.  ;{17;    I'rit.,  «<t7,  IX..  i. 
•JM  ;  fMii.  S|i.  T..  N(..  ")8.S. 
■4   (i.  "  KKNKSIHATA,  Ku. ;   tViint    ^'iew^*. 

7-11.  "  Ki.ot  I  i.osA,   K.   i'...   17.  f.  21:     fn.nl   mid  •*!. It- 

views ;   Mill..  S.  [)..  1(1,  f  -J  ;  S,  H.  D..  4;!,  W 
■SKi;   i'rii.,   p.  .xo7.   IS.   I.  'J!);    Sm.  S(i,  T., 
N...  ."-sS^. 
12.  15.  It;,  'I'KlRACYi'I.ls  K>rAl!(.INAIl-'«.    \V.   S. ;     S.    H.    !»..    II,    |i.    :W  : 

I'rii..  soil. 
•'       13.  II.  17,  IH.  •'  i,A(isTi{is.  Riiils.:   ..\,  N    H.,  1848,  p.   Kto,  2. 

r.  -J;   K.  n.  2'.».  I.  70;  S.  B.  D,,  :i9,  f.  ;'.()H : 

Hrit..  |i.  «()ti.  1 1.  I.  24,  2">.     .\li  side  views. 

"       19,20.  "  i.Ai  I  siKi.s.    arKiilier  I'tniii :    tliivt-  Iroiit   views 

,'tiiii  one  side  view. 


;!0.  f. 


4;!,  r. 
I'.  T., 


;w 


:'.()H  : 
.'ieWH. 
vifw^ 


11    I! 
I!   I 


i    I 


i  !■: 


1 1 
i  ^ 


■IKS, 


PLATK  1-1. 

I'iL;iin-i  iiiiniiiitic'd  Vm  (lianictoi'-. 


\-2.\A.    SriMAiKM.A  i-\iiT\tiATA,  Asi.:   K.  !'..,  IS,  t'.  .");  S.   R.   I).,  ;il\  l'. 

;W7  ;  I'lit  ,  ■\.  r.  10:  Sin.  Sj,.  T.,  .No.  oK). 
•'      •_>.;:,  t.       Kh  \iii>()Ni;ma  AwniATK  r.M,   K    li..  IS,  f.  7  ;  Frit..  S(i.".,  IH,  f.  27  : 

S.  P..  !>.,  S'^.  r.  .S'l,-).  ,Smi.  S|i.  T..  Nil.  «•_>. 
»      .'),  rt,  7.  "  Anci  iiiM.  K.   H..   IS,  t'    «;  S.   H.   D.,  HS,  f.  ;!()•'.: 

riii.,  s(it,  1(1.  r.  '2(t:{,  I'lM :  V.  n , -H  r.  14-16. 

l""i^^  7  (lolled  iill  uvcr;   lit;,  ti  perfei'!'.!-  stiiooth. 
Fip.   8-1 1 .  •'  MiNi-n  M.  K.  IV.  ■.'1,  f.  L> :  S.  H.  D  ,  .-.S,  f.  8(i(', ;  I'rit.. 

1,  r.  II :  S!n..<i).  ■''-  ^'"-  4:^'"). 

12.  IS.         .SthiATKM.A,  end  views  ol'  lis;.  I   m;ir(;ins  iiiiilc  siiidotli. 

14.  PuKOCYSTlS  A.MKRl.  AN  \.   I'.ilil.  ;    N.  Sp,.  \,.  1  1,  C.  :{S  ;    M.   I).,  i'l,  (. 

•21  ;  S.  I'..  1).,  II.  i>.  101. 
lv)-17.         1 1  ANT/sciii  A  AM  riiiiiN  vs,  r, .  .Vi7-.s('AiV(  <impliion)f!'\  Imnlly  a  need 

lor   tlie  newer  treniis   II;int/.seliiii  ;    \'.  H.,   •')(),  I". 

1 ,  "J.     ( 'ompMie  lijr.  ilo 
is.  PoiiocYsris  .\.MKi!i(AXA,  li.'iil  ,  same  MS  tiir.  I  I. 

19.  "  Ai>niATi('A.   K.   r..,  |p.  ii-_';   I'rit..  77*2,  4,  f.   10:    Sni. 

Sp.  T..  No.  4I.S:   V.  H..  .V),  f.  8. 

i!o.  NiTzs(  iiiA  AMPiuuxYs,  s.  R.  I).,  i;i,  r.  i(»o:  Sill.  Sp.  1'.,  No.  ;;:i,4 : 

Prit.,  p.  780.     .Same  us  fi«s.  l.'»-17. 


Pitts. 
Kir. 


I'UteLI 


I   n 


Figs.  1,  2. 

Fig.  a. 

Firs.  4,  5. 

'•  6,  7. 

FiK.  8. 

'•  1). 

*•  HI. 


11. 


PLATE  T,1I. 

Fllfnrt's  iiiiitciiiriiHl  "itKi  cltitnn'tcr^. 


SiRiRKMA  Bis«RiATA.  W.  S.;  S.  H.  I)..  8.  f.  •".     Breh.  has  a  S.  hi- 
neriutu  which  is  Siir.  litieuiiii.  W.  S. 
•'  ki:ch:i)KN.«.  A.  S.:  Si-lim.  At.,  IV),  f.  -.'4  ;   24, )'.  '28.     Var. 

Ill"  1^.  fuxluom. 


FiRfi.  1-2,  1.". 

••       14,  15. 
"       Iti.  IV. 


Ill"  1^.  fuxluom. 
(iRWKiiu  A,    KiiU'iist.;  Scliin.   At.,  21,  f.   17.     Only  a 

Siir.  tifyaiix,  Kiirli. 
(  KiciATA,  A.  S.;  Sclim.  .\l..  •'•I),  f.  15,  16. 
i;K.rKi>KN>.    .\.    S.     Prnhiilily    ji    viirietv    of     fastnosa. 

('iiui(iiiri'  Fi|k{.  '^. 
il.iMlXKNsix,  (4niii.,  IStiJ,  JI.  4ti;i :  Sihin.  .V;.,  o.  (.  ti ; 

4,  t'.  W.      Pnilinltly  ;i  viirifty  nf  S.  j'axtKdHa. 
lAsTiosA     KhiK.;   K.   IV,  2V.  f,   19:  S.  H.  I).,  9,  f.  (>« ; 

.M.  .).,  IHo.".,  ().  4U,  4,  f.  12;  Schiii.  Al., ."),  f.  7,  8, 1 1. 

Tliis  Htjure  is  one  n\'  A.  S.  not  W.  S.     .\  viiriahle 

t'nrm  (lifli'tinK  K''''"''.^  in  si/,i-.     Marine.    Compare 

|iliiti'  •^."t,  tijiiiies  1    4. 
.,i;mma,   Khrl>.  Ahh.,   1840.  p.  7(1,  14,  I",  n  ;  S.  B.  D.,  9, 

1.  (m;   I'rit.,  79".,    12,  f    2    I:  Schni.  Al.,  24,  f.  2«. 

27.,  eti'. 
ni'i..N-(iA.  Kh  ■\>.   .Mik..    17.  2,  f.,  1  ;  2,  :;,  f.  15,  etc.;   K 

H.,    29.   t.   :!S;    .-ichin.    At.,  22,f.   t) -8  •   near   Kk.': 

s/ilendiilti ;  S    H.  .\..  S,  f.  (I.S. 
MolJ.KlilAN  »,  tiriin.;  .S4im.   .\t  ,  28,   !'.  lUi,  'M  ;  56,  I 

21  •2;'>.      IVnsaoola. 


•' -....  .,  . 

21  •2;'>.      IVnsaoola. 
AN«.i:sTA.  K.  B.,  8(1,  f.  52;    Hah.  S.  I)..  8,  I 
\L,  28,  f.  89-41 ;  Sm.  Sp.  T.,  No.  512. 


8,  r.  17  ;  Sohni. 


I 


;     '!     t\ 


V'i     i 


I 

I 

4 


rL,ATK  LIII. 


F'luui'i's  iiiiiKultU'd  VKi  iliniiu'l)-)S. 


1 


Fig.    1-3.        SiHiit 


Fii 


4. 

0,6. 


7,8. 

9,  10. 
11. 


Fig. 

Figs.  12,  13. 


FiK. 

14. 

Figs. 

15, 

1« 

Fiji-. 

17. 

Fijfp 

1«, 

1« 

li 

20, 

21 

Fig. 


22,  23. 
24,  2f). 
26. 
27. 


i;i,;.A    Mkxkanv,  .\.  S.:  S.liin.  At..  ;,  f.  10-12.     Tne.'ip  and 

llif  folliiwiii)/,  Iji;.  4,  cviiii-nlly  only  varieties  of  <9. 

/(DftiioKa,  I'llii'li,  ( 'i)iiiii:irt' |il.  52.  (Jnlf  i>f  Mexico, 
ItKi.iMKcKii,  .Noriiiitn  ;  Sciiii).  At.,  4,  t.  22.  Camp.  Hay. 
cin-MKN.v.  Bivl).,  S(4im.  Al.,  24,  f.  7-9;   V.  H..  7:H,  f.  1  ; 

Sill.  S|).  '1'.,   Ni)    ■'ils.     Hreli.  MijiKestetl    they    are 

variclies  dl' .S.  Hriijktvellii,  II.   L.  S.,  timsiilefm  tliem 

nearer  In  .V.  iwalin. 
nVM.i.s.  K.  B.,  •■<(.).  f.  H4;   Kal..  S.  l>.,  .S,  t'.  ;>4 ;  S.  B.  D., 

!),  f.  (IS;  S.liMi.  At..  2-1,  f.  I    l>.     Salt  Lake. 
.vncii.MA,  S.  i;  L>.,  II.,  p.  S8.     Scliiii.  At.,2H.  f.  34,;$5. 
MicKocoRA,  Klirli..  K.  I'..,  211,  f.  lo:  Kii'..  S.  L..  3,f.  26; 

Sill.  Sp.  T.,  No.  .")2t;. 
.■*PiKAM>    K.   B.,  3,  f.  ti4;   Kali.  S.   U.,  3,  I".  ;">  ;  Sehiii. 

Si-liiii.   At.,  of),   1'.  2'"i,  2ii  ;  lief'T,  Campyludincug  itpi- 

/■((/iV. 
iM)i<  TA,    A.    S.;  Scliiii.   At..  20,  f.   10;  24,  f.   15,  25. 

I'riili:il»ly  llie  .same  as.  (iy.  H,  S.  (nKilis;   var. 
nvArv  l'"''i''-.  K.  B.,  7,  f.  I    4  ;  S.  B.  I)..  9,  f.  70;  Sdim. 

At.,  JS.  f.  4!)  ").'.:   \'.   M..  ?;;.  !'.  5-7.     I'rt.lmbiy  a 

var.  c(t'  .v.  Di'iUiit  ;   H.  I,.  S. 
iiii.icAi'issiM A,  Lewis,  X.  a:.i'i  I.  Forms,  |,.  .vVA,  1,  f.  4. 
MiMTA,   Bifl,.:   Kali.  S.  !>.,  .X,  f.  28;  S.  B.  I)..  9,  f.  73  ; 

Schm.  \{.,  23,  f.  42  4S;  Sm.  Sp.  T.,  Nos.  027.  -ViK. 
iM'Ji.YiTA.  Klirl).  Amer.,  :t  •"),    .  2,  4;   K.  B.,  28,  f.  27; 

B.ih.  S.   I),  .'{,  f.  23.      I)oiil)tfiil    '"orins,    pnibahly 

small   varieties  ol'  Svr.  splt-ndido  or  may   t)e  <S'ur. 

eJe(/<inti.  U.  L.  S. 
Bavi.k.vi,  Lewis,  N.  anrl  1.  Knrms,  p.  33><,  I,  f.  1. 
ANcKPs,  Lewis,  N.  aiifl  L  Forms,  p.  342,  1,  f.  3. 
INTKHMKDIA.  Lewis,  N.  and  L  Forms,  p.  :!39,  1,  f.  2. 
AH< Ti.'^si.MA,  A.  S.;  Schm.  \L,  •%,  f.  13,  14. 


PInif 


I 


r 


r 


i  J  : 


I  ! 


i  I 


^1 


I'T.ATE  IJV. 

KiRurcs  iiiii;;i)lflti(l  .")<Ki  (llninot<'rK. 


FiR.    1.  SuRiBELj.A  '•iLEOANs,  Elirl). ;  K.  H., '2H,  f.  2n .  Ral».  S.  D.,  3.  f.  2; 

Schiii.  At.,  21,  f  18,     Not  the  tyf)unl  form.     Usually 

more  like  tii;.  T,  8  in  out  line. 
"      2.  "  .SPLKNDIKA,  Viir.  Iiifnm>:    ^.  S ,  =  (biseriuta,  W.  S.,  not 

Hreh.'s  form) ;  Mik.,  7.  .S  .\,  f.  17,  20;  7,  1.  f.  2 ;   14, 

f.  HO;   K.  B,  7,  r.  1(1;   I  ab.  S.  D..  3,  f.  21. 
FigH.  3,  (7).  "  apLENUiDA,  Ehrb.  Mik.,  •'>,  1,  f  *2;  14,  f.  .'<5;  S.  B.  D., 

8,  f.  62  ;  V.  H.   72,  f.  4 
Pij?.   4.  "         sENTis,  A.  S. ;  Sehm.  At.,  19. )'.  9,  11.     Has  appeaninee  of 

a  very  larne  form  of  .Sur.  fustuosa.     Camp.  Bay. 
"      0.    '  "         VALIDA,  A.  S.;  r-ichni.   At.,  2;'.,  f.  3.     Looks  lihe  an  ex- 

iiKgeriiited  form  of  S.  Npleniiiiia. 
"      6.  "         (ii'ATiMAi.KNsis,  Klirb.,  ==  i S.  cardinalis,  Kittoi' ;   =  S. 

limosa,   Bail);   Mik.,  'AA,  14,  f.  24;  Sm.  Sp.  T.,  No. 

•">2:t;    .«<.    laniinalis.    Silim.    At,    21,    f.    11-14;    S. 

limosa,  Mik..  18Wi,  179,  9,  f.  o. 
"      7.  "         spi,KNi)il)A,  vide  ti^.  ;>. 

"      8.  '•         KOBir.H'jA,  Ehrb.  Mik.,  jti,  ;i,  f.  31  :    17,  2,  f.  1  ;   17,  1,  f.  14  ; 

.Sclim.  .Vt  ,  22,  f.  3,  4.    Marine.     I'robably  a  variety  of 

splendida  ;  Sur.  nobilisof  (iriiii.  is  a  s(K)ran^iHl  form 

of  splendida. 


n  '■^''^^•■' 


I'lal,.  1,1\ 


h 


! 


I  I  i 


t 


Ji. 


J 


t 


„ 


'I 


M 


if 


,i 


PLATF   I-V. 

Fieurfs  ma(;nlflp(l  'i'lfi  (lliiinrtcrs. 


Fijr. 


FlRfi. 


< . 

8. 

9. 

10,  11. 
12. 


Srid'HKi.i.A    Kkmk.kkii,   Lewis  N.  ;ii>(I  \i.  Sp.  |..  T..   I,  I'.  '1 :  S,hn\. 
Al..  •_'(!.  f.  !i:  -21.  C.  1  :  .Sm.  .S|,.  T..  Nd.  ')20. 
iNDlc TA.  or  Siir.  siriiiiiilii,    v;ir.   indiU'tJi  ;    A.  S.:  .Sclun. 

At.,  'J(l.  I    m  :   -24.  f.  1."),  2."). 
Kl.i:.i.\\s.  Khrl'.;    K.  I'...  '.'h.   1.2:1:    l»;tli.  S.    1).,   .!.   f.   2; 

Sclmi.  At  ,  -Jl.  f.  IH. 
S.woNlrA.  AiUTs.;   >vh\\\    A I ..  'Jl!,  f.  I .    l'r(fl>al)lv  iiiily  H 
vurietv  of  S.  siilfinliila. 
"  KASTi'os.v,  Klirl)  :  Sclnii.    At..   "),   f.   7.    11;   rompaiv    I'l. 

4!l,  f.  10;  ."i'J,  I.  I    :H. 
'•  -TRiATt'LA,  Tiirp.:   K.H.,7,  1.  t« ;   Kali.  S.   D..  .s.  f.  -.'-J; 

S.  B.  I).  9,  f.  <;i  :  ,S,.|,iii.  At,.  Jl,  r.    17  22  :  Sni.  Sp. 
T.,  No  .').•{«,  =  Snr   lesiiicio.  Klirli.     Salt  Lake. 
"  HKOINA,  .Jaiiisch  ;  Stinn.  At.,  21,  I'.  .").  »5.     (  al. 

-Pi.K.NDinA,  v.tr.  Ort-jjonica.  M.  I,.  S.,=r  Snr.  Ore^dnica, 
Khrli.  Mik  ,  'M.  12,  I'.  27  :  Sciini.  At.,  22,  f.  '.» 
''  >PLKNnu>A,  var.  Inririda,  H.   I,.  S.,   =   .Snr.  tiiraidn  \  S. 

B.  D..  9,  f.  rtO  ;  Sclirn.  At.,  22,  I.  IK.      Lake  Erie. 
Kt.KOAVS,  var.  David.sonii.  U.  L.  S.,  =  Sur.  David.xonii, 

A.  S;  Sclitn.  At  ,  21,  t'.  7    Id. 
i.AKViGATA.  Khrl).  Ber.,  ls4.'j,  p.  SI  ;  Sflim     At.,  2-1,  f. 
2ii,  24.     l'rol>aldy  a  variety  of  Snr.  regiiia. 


Jl  ■  u 


I'luic  ia; 


,  \ 


: 


H^ 


'  El.    1 


1   ' 


I 


r 


KiR.      I. 


Fijp..  .S,  4. 


Fill.   5. 


HS. 


10. 

n. 

1-2. 


PI,ATK   lA'l. 


FlKiii'i'K  iiiui,(uitleU  VK)  iltiiirx'terti 


St  iuKKi,L\  KEii.KXA,  Kliib.  Mik  ,  :;;!.  II,  f.    I.S,  AI.Ji  ,  IM70,  3,  '2,  f. 
"i.      Prolialilv  ;i  VMi'icty  III' Siir,  s|ileiiiiiilii.     ( >roy;nii. 
"  l.Kl-rtii'TKKA.  Khrli.   Alili.,  I«7(t,  ;'.,  2,  ('.  7.     On-ijun. 

(iKHoi.iii.    Kliilp.  Al.li.,    Is(i!t,  |,.  .■,;(:  Al.li.,   Is7(i,    2,  I, 
f.  7  :  Sill.  Sii.  T..  Nc,  ')I7.     Iiaii. 


rliKM  l,,\  lA,   Klirli.  Mik. 


14,  r.  ■S.i;   .Vl.li.,  |S7(I,  •'    I, 


f.  !t;  Sill 


S|).  'I'.,  Nil.  •'.17.     I'l.'ili 


C'AMPYMlDlst  L'.><  KlIKKXHMtKll,   K.llfs.  ;    I'lil.,    ,S(I2     12,  I'.    12.    I  .'<,  '. 

23,  =r^  Siiiiiell.'i  cMiiipvlniiisi'iis  ;   Khrli.   .\iiu'i  ,  3, 


f.  «;   K.  K.,  2S,  C.  2tl;   !t,il..  S.  I).,  8.  f.  I. 
Ambkm'AMis,  Hlirlt.  Alili.,  ls7i»,  ii.  .'»•_»,  ;; 


r. 


Si'KiRKM.A  MiNiTTA,  Bieli. ;   Hill).  S.  1»,  ;{,  r.   2S  ;  S.  |i.  I).   9,  f.   73; 

Schin.  At.,  23,  42  4H ;   V.  U.,  73,  T.  9,  In,  14. 
(  AMi'Yi.onisciTs  Ca.«tillii,    Khrli.   .Mili.,    1H<19.  1,  f.    I-.,  '.i;    \\>\\., 

1870.     Mexico. 
"  i.A'rrs,  Shidl.. ;  T.  M.  S.,  lS.-)4,  \k  Ki,  I,  1.  13. 

SUKrRKM.A  PAJiKlTRIFORMIS,  S.  B.  F).,   30,  !'.   2oS ;    V .  H..  73,  f.    II  ; 

Sm.  Sp.  T.,  No  033. 

('■AMI'YI,OI)|>(  tS     Hl'MHOLDTII,    Khlll      .\lill.,    \Si\9,    )).    4(i,     IP],    I.    ;!. 

Oregon. 


I'Ihi.  iai 


^^1 


I 


I 


' 


^1 


:li    i 


'if* 

h 
ii 


1 


i 


1 1 


t) 


^-^n 


i  'i 


Viu*.  l-o. 


Kik;. 
Kins. 


0 
7  9. 


V'^K- 

10. 

KlRH, 

UN. 

KiK. 

1".. 

Kijfs. 

Hi  20. 

(.  .) 

1 .  -i'l. 

i' 

2«--J">.  -'H 

•• 

•Jti.  --'7.  •.'!! 

"     :?(i  :<•_'.  lit; 
Fiua.  .S4,  .'Jo. 


1'I,.\TI'.  I-VH. 

I'Ijiu'c-  iiiiiiiillli'il  '.mi  illiiimti'f 


NlKi.uMr!  K  M  MMri.(.ii.h>,  \u-:  K-  IV,  H.  C  ■'>  ;  S.  H.  I>,  Ift.  f.  :VJ1» ; 
|iiil..  |..  sUl.  .'),  I",  f.l:  II,  I'.  14;  .\ltii..  IS70.  2.  \ 
C>~ .  M.  iii>iMilii()inii%  Ku.  'I'liis  niiiiii'  wit.*  Kivi-ii 
liy  Kt'ii'/.ini;,  Ixit  iitJit-rN  ii|)|ilieil  it  iiidiixriininiitfly 
to  liiinH'i'i,  iimiitiinlnitlfs,  ^iiliim.  (li-ci^'cni.  I'ic.  It 
i^  (if  nil  vnliie. 
"  1  iiciriixi:Nsi>,    Mail  ,  =  iit'imliitii,  Kn.   I\.  1'..  2,  I'.  M; 

V.  II.,  s.s,  I'  :\  :,. 
"         (iHANii,.\i.\,  I,.  \V.  i'.Mil  :   H.  .1.  N.  II.,  p.  ;!.!2,   1,  T.  7. 
V.  \l,x7.  f.  10   12,=   .Mil.  imiulatit.  =  (iiiHio 
mlla    «riiniiiiilii  :     ti.   niaichicii  :    |inict  ra  :    Icikt- 
lima. 
"  .\mkuic  \N\,  i\al>.     ( >r  viT.v  iluiilitt'iil   valiif.      No  line 

alilt'  tn  ifil  wliat  iliis  is. 
v\Hi\Ns.  .Vu'.;  A.  .N.  II.,  isia,  p.  ;i.")7,  it,  I'..');  K.   H. 
2.  I'.  Kt;  S.  M.  I).,  .")!,  t.  :;:12;   V.  H.,  S.'),  T.  lo-  IT). 
"  VAiM.vNs,  liir.  tViini  Kali..*'.  !>. 

<  KKVt'i  Ai  A,  Hail  :   1>^.  var.  iafvi>i ;    19,  2o,  var.  tenuis 
('nMi|iare  lit;.  0. 
"  i.iiANil.A  TA,  Hail.      \'ifi'  tic.  7   '.'. 

s<  A  I. A  HIS.  (iinn.;   \'.  H.   srt,  f.  ;>o. 
-iMiiAi.is,  Kk.:  V.  H.,  ,S7,  r.   li»  22;  Sni.  Sp.  T.,   No. 

2:!1,  =  vars.  ol'  niaimlata. 
IHSTA.NS,  Kk.;   K.  H.,  2,  r.  12;  S.  H.  |)..  81,  f.:{,so ;  Kal.. 
S.  I).,  2,  \:  9;   V.  H.,  rtt).  f.  21  -23. 
"  oKA.NL'i-A  I  A.  var.  =  M.  carcdniMiHiH,  (irun.:   V.  H.,  >h7, 

r.  27. 

scfM-TA,    K«.;    V.    II.,    91,   r.    l;'.,    11,  =   Ortliusiitt 
marina.     Side  ami  front  views. 


I'lair  lA  il. 


H. 


"  v53  II  ^^^ 


3'  immu  mrr  aa^w/ 


Bia    as 


! 


■         If 


i; 


i     '• 


PLATb;  LVIIT. 

"isfiiri'S  m;iLiiiflcil   '**^  diaiiu-ti-is. 


Fins.  1.  •-'.        Mki-osira  SOI,  Kk.:  V.  H,  '.M,  f.  7-il;  Witt..  1S88.  p.  17,  4,  f.  H. 

Svii.  (iHllioiiell!!  Hud  Ortlidsira  sol. 
"  s<  ri,!'TA,   Kliili.  Alili.,  1x70,  2,    I,  f.  71  ;  vide  PI.  of,,  f. 

34,  3'>. 
AKKN.MUA,  Muor.'.:   .\.  N.  H.,   1843,  p.  .".4'J,  9.  I'.  4;   K. 

H  ,  21.  t  ,  27  ;  RhI..  S.  I >.,  2.  f.  1".;  Frit ,  819,  8,  (.  17. 
BoRKKHi.  (irev.;  S.  H.  I).,  •".(»,  T.  :;3t>:  V.  11..  8^j.  f.  5-7. 

Ordinarv  imd  sixinm^rial  t'riistiile.>i. 
siL<  ATA,  (   "   MiiriniO  Kl.rl..;   K.  H.,  2,  f .  7 ;  Al)h..  1870, 

2,  1,  f.  72:   V    H  ,  '.H,  l'.  Ki;  Jiiii.  (Mian.,   p.  2G.  l.\, 

f.  8,  4,  ==  Ortlmsira   marina. 
(JLAVIOKKA.  Gnu..;   V.  H.,  91,  !.  1.  2. 
oKiOHALCKA,  K«. ;  S.  B.  D..  II,  p.  01,  ."A  f.  337,  =  Or- 

tliosira  oriohah'ia  :  W.  S.,  :^  Galliouella,  orichalea 

Khrb. 


"      3.  4. 
Via.    .V7. 
■'      8-11. 
12-15. 


"       It). 
KiKH.  17,  18 


Jt   i 


I'lato  1,\-1I1 


I 


i 


Ms 


;i    ! 


; 


'J 


ii 


-I    ) 

:  ! 


II 


■  '■ 

1 

[hi 

•! 

1  J 

:       H 

1 

( 

11 

■t  t 


ii,       i 


IK- 


'iuiiri's  iniii-iiifltd  'iiN'  (llmiii't<M>. 


1.  MAsTo(i(.Ni\  <Mn  X,  I':iirli.  Mik..  :!:!,  is.  f    S;   M.   I)..  4:V   I",  -i:!:!:   V. 

U.SH',  f.  1. 
'2.  Hvu.oi.iM MS  i.AKVis.  Khrl.   Mik„  :'.:!.  l-"..  f.   17;  Cast.  1SS7,  p.  1-10, 

•J  I.  f.  4.     This  IIk-  is  taken  rniiii  Ciisiraciine.     Thf 

;;riiniii<>s    -^liould    lie    iiKirc    lieiisi'    iinii    tlie    lines 

like  tisr.  :!.      I'l.  •_'4.  f.  I. 
;!.  "  siT.Tll.KS,  VMr.  .lapniiicii,  Cast.,  IK,  f.  4  ;    Bail.  N.  Sp., 

10,  f.  ]■>■    I'lit.,  .sl">.  .'),  r.  (id. 
4.            l'..i)<.8tKA   u«!is,  (inin.,  1S7S,  p.  :'-:.;  .1.  H.  M.S.,  IST'.i.  p.  ti!»l.  '21, 

I',  (i. 
iIvAi.<H)i!<(rs  WiiiTNF.Yi,  Kluli.   Al)li.,  ls7(i,  p  07,  2.  1,  f.  21. 

"  SiKi.i.iGKK.  Hail.  N.  Sp.,  p.  10;   V.  H.,  84,  f.   \2.  = 

l*r)<losii:i  niaciilata  ;    I'vxiiliciila,  eti'. 
MAXlMi:s,  Klllensl.;  .1.  H.  M.  S.,  187H,  p.  2:5   ,  14,  f.   7. 
M\srn(iOMA  iiKi'TAfjoNA.  Khrl).  T'cr..  IS14,  p.  26!t;  Sill.  J..  Marcii 

1S4.".,  p.  AW.  4,  f.  12. 
I'liiHisiiiA  P'KKKiKKii.  (iriin  :   \'.  M.,  X4,  f.  22  24. 

sTKi.l.l'MKKii  A,  limn.;  ,1.  H.  M  •  S..  IS7'.t.  p.  (WO,  21,  f.  .'J; 
\'.  H.,  (var.)  S4,  I.  2."i 
"  Kkiuoi     II,  (irun.:  Cal.,  rl'li'  tijj.  I". 

"  HOUMOIUKS,   "',■'"•   I^y'    ^-    '^  •  -'^'  '    "■    '^'''  *•  ''*"^- 

"  "  ^■•'.  ^    •'••  '*•  -*''•  '•  ■■^•■*'  :   ''•■'''  ■'^''"'-  -•  •"■  •*'^' 

J.  R.  M.  S..  1S7<),  p.  (WP.  21.  f.  7  ;  Sm.  Sp.'x.,  No. 

41'.». 

FiKs.  17,  18.  "         MONTAUNKI,  K.  R..  20,  f.  Mo:  S.  \\.  I>.,    Id,  f.  ;{2fl ;   Prit.. 

81.-),  5,  f.  «1  ;  Sm.  Sp.  T.,  No.  i'l'I ;  V.  H  ,  84,  I. 

11,  12.     Parasiiic  in  pol.v.HJi/lioriia,  fig.  19. 


Figs. 

•). 
(>. 

7.  .s. 

FiK. 

i). 

{( 

10. 

" 

11. 

Ki;;s 

12.  i;:. 

(i 

14,  !.•). 

Fix, 

iti. 

u,. 


I'l.llo  1,1X. 


I' 


i^' 


i 


1 1 


In 


PLATK  LX. 

Kiiini-t's  iri!ii;iiilii'<l  .'iiKi  (liiiirietiM> 


i  *  ■  r 


Fiif.    1-4. 


V\^^.  S,  10, 


"      '.t,  1-J. 

Fig.   i:-;. 
F'lKs.  14,  !■"> 

Fir.    It). 


(  vMATni-i.KruA  soi.KA,  S.  li    D..    Id,':.  7H ;    I'fit,  7*1:'..  !♦,  f    l-V); 
i(i,  f.  SI;  M.  !).,  V-',  1. --'4:  S:u.Sp. '[".,  No.  114, 
"  KM.II'TICA,  S.  !',.    I).,    10,   I.    ■        ''fit.,   79:!,   »,   t'. 

14'.i;   M.  'V,  12,  r.  •!'.■     \'    !i      io,  f.  1-4, 

jiiiiKKNirA,  \v.  .»;„  s.  :»,,  !'    ;,,  r,  ;!i :  sm.  sp. 

T.,   No.    ll:!:    \'.  H,.   •-•"),   r.   :!l,      I'n.iit    and 

<iili'  views. 
"  AIM.ILAI  A,   W,   S,,  ."^.    U.    1).,    1(1.   r.   :.•;   (iniii. 

ISi'i'J,  |)    Ititi       .\  var.  of  solca. 
"  ^(il.i'A,  aiiollwr  --ide  view.      ('om|)an'  lij;,  1  -4, 

"  \i\iiiN\,   I,i'\\i>,   N,  and    i;.   S|i,.  |i.  .">,    I.    r.    4. 

L^•\vi^,  I'    S,  .Sea   H(i:ird. 
"  ANi.ll.AlA,  tiiev.  T.  M,   S.,  Isf.'J,    [I,  .S5).  "I,  I,    1, 

Cul.  ( iliaiio. 


: 

: 


;S  ,t 


I 'I'. to   hX 


f 


trr- 


^W 


i\\ 


^ 


I  II 


•M  ' 


r  I 


I 


if! 


■'.■it 


\  ic».  1,  2. 


FiK. 
Figs. 


3. 
4,5. 


Kig.   »i. 


v; 


igH.  «,  ». 


(t 

1", 

11. 

He. 

!'->. 
i;<. 

Figs. 

14, 

16. 

PI.ATK  l.XT. 

Kl({nre»  itiHgniAed  .5(10  (llairiP'"r«. 


(iKPHYBiA   taoANTKA,  ( irf V.,  T.  M.  S.,   18«6,  |t.  122,  U,  f.  7,  8; 
CnHt.,  1887,  p.  42,  1'.,  t".  10. 
"  coNSTRicTA.  lirev.,  T.  M.  S.,  1866,  p.  77,  8,  f.  2. 

'•  MEDIA,  M,  J,,  1.H60,  p.  -JO;  Frit.,  p.  809,  4,  (.  49;  Mm. 

Sp.  T.,  No.  l)«2. 
Tkki-hinok  MivsicA,  Elirl).   Mik.   34,  (L\,,  f.  8;  34.  oA.,  f.  10;  R. 
B.,  30,  f,  72  ;  RhIk  S.  1).,  HI.  10;  Prit.,  859, 11.  f.  47. 
MAUN  A,  L.  W,  Bailev.  B.  J.  N  H.,  840,  2,  f.  46-48. 
TKTRAWAMMA,  L.  W.  Biillev,  B.  J.  X.  H.,  340,  2,  f.  50, 
51.     FVont  Hnd  end  view. 
"  V,nO.  viov,»  'it    .-rtrieties.     Beaiiford,  N.  ('. 

MINIM  V,  i..  W    Bailey,  B.  .1.  N,  H.,  340,  2.  f.  54. 
"  Ml  sicA,  Knd  vi*  *  of  large  form,  from  Florida. 

"  iiv>td  H'iewH  of  larifer  foriiiH, 


Sni. 

K. 
i7. 

50, 


. 


%0% 


I'l.lfo  liXI 


i 


li 


f 


it 


Ml 


I 
! 


i 


% 

;i      ■    '■ 

■'1     , 

ilr 

1;: 

IM-ATK    lAII. 


Fip.    l.lfl).     Stkpuaxoj'YXIs  c  tiKoNA   (inin.;   \'.   H..  HIV.   f.   Id,   11:  Sdun.   Al.. 

12H,  ('.  Ml;    i:^<",  f.  H(). 
pijj     2.  "  spiNOShsi.MA,  <  iniii.;  Nclim.  At.,  ItilJ,  f.  I''^- 

,.      _^  «  i-rKKis,  \'ir.  l•l■:l^«si|linll,  (inii>.;  Scliiii.   At.,   !:!<•,  f. 

.■>7,  1 1.     Miiiiierev. 

..      4.  SuKiMi  AN Ml  .-  MNKATlis,  Ehrl..  Mik.,  X\,  \'A,  I.  '!•>,  =  CcMinotlm- 

I'us  liii.'uliis. 
,S.  Stkfiiamu'YXIs  All  lata.  Klirli.:  S<iiin.  At.,  \'Ml  I.  Ti. 

••      6.  ''  ( oKoNA,  viilc  li^r.  1 

"      7.  Pv\mi<ii.A    il)icly..i.yxiKi,  cKi  «iai'a,    KIuIp.   Mik..     1>;.     I-    •-i!"'- 

Klirl.sMimiiviliilieifi(t,=  l'v\.  HflUiiitn,  var. 
)^  "  (Sif|iliiiiiu|).vxif.),     i.iMBATA,     Khrli.     Mik.,    IH,    I.    ,  ; 

Prit.,  p.  SI*:.. 
i<      rj  "  (.Stci>li!iiH(|iyxis),  (iiiyiATA,   Klirli.;   K.   Her,   1^41,  i'. 

Sti.  Mik.,  IS,  f.  ti. 
..       1(1.  "  (I»i.ty..|,yxi.s),  i,KN.>,  K.   Hit.,  1S4.">,  p.  H«:   Mik.,  IH,  1'. 

.");    IVil  ,  \<.  S-Jf). 
"11.  "  cRPtJiATA,  ride  lis;.  7. 

Fij:>.  12-lf).   STKPHANOPYXis  APfESKii'ti.AiA,  Khrli.  Mik.;  IS,  f.  4:  Sdiiu.   At., 

1:H),  f.  IS,  Ml.  2),  2;h,  24. 
l.-i_,     iH.  «  AiMiiui.ATA,  Kl.rU.  Mik.,  IVt.  f.   1.'.,  =   Pyxidioula, 

a|ii('iil:U:i. 
'•       17.  Hyxioici'I.a  compkkshx.  Hail.  M.  D..  p.  40.  'J,  f.  K!,  14-.  Sm.  Sp.  T.. 

N.,-^.  48(1.  4.'U. 

IS.  MA8TO«ONtA  .SKXANGII.AIA,   Klirh.   Mik.,  8:^,    17,  I.    12. 

<•       lo  Pyxidicui-a  L'r{(t:(ii,AHis,  Kliili.  Hit..  1H44.  p.  sti;   .\Iik..   i:i,  f.  :<it. 

•JO  t'YCLOTEi.LA  PiiYSoi'Mvv,  Kt;.:   Piit.,  p.  HH:   .Mik..  So,  12,  I.  lis. 

••       2'.  LiosTEPtiAN'iA  coMfTA,   Klirli.   Her.,   IH47.  p.  ?>r) :    Mik.  HC.  I    41; 

Abli.,  187 r),  1.  f.  .'..  fi. 
"      22.         t^'ci.OTKi.i.A  PHVsnri.KA,    Klirl..     Mik,   ;<:<.     17,  s.    =    Disciplea 

phvHoplea. 
Figs.  2:>,24,    ()i>ONTEi,i-A  OKTUSA,  Kfj.,  K.  H.,  IS,  t.  «,  =  HiH.li.lphia,  aurita  and 

ol.iiisa;  Schin.  At.,  122,  SO.     Nearly   allied   U. 
Bid.  luetm. 
'•      2o,  26.    Htm.ABU'M  (Stylohibliiim)  ci.YPKf.s,  Ehrh.  Mik..  as.  2,  f.  IS;  Sm. 

Sp.  T.,  No.  ")>;      Ore)it<>n. 
'    Fig.    27,  XANTHtopYXiP  ftNGt'LATA,  Khrh.  Mik.,  .13,  17,  f.  IS.     \  a. 

"      2S.  LfTHoitF^MiUM  roNTBACTUM.  L.  W.  Railev,  B.  J.  N.  H.,  p.  HSS,   I- 

f.    K.     Grwsnport,   N.  Y.     Of  doubtful    value. 
H.  L  S.  nays  this  is  not  a  diatom. 
"      29.         CH.\EToc»,ROfi  ni»TAKS.  CI.;  V.  H.,  82.  f.  4.     Mobik. 
"      30.  PYXiT>icn-A  ftiOAfi,  Mik.,  .33,  13,  f.  18.     V«. 


I'l.ilo  I, XII. 


'\ 


-'I 
i 


III 


I'l.A'n-:  Lxiii. 


Kiuiir»'s  iiiii'jiilllc'il  'ptHi  illiirMcti'i>. 


Kii;.    1.  Navii'ii.a  kntomun,  I'lliil..  K.  II..  'J.S,  r.  7  1;  Srlnn.  .\l.,  i;!,  1.  11!    IH. 

IS.  4!»;  t'lisi.  Cliiil.,  -Jd,  r.  Id. 
•'      2.  I'lH.vi'M  A,  itit'li;   l,t'wis  N.  ;iii(i  K.  S|i.,  'i,  f  7;   \'.  11. 

.\,  C.  14. 
•'      3-").         Tkhkka  I  iiM    V  \KiAiiii.i,   I'liiKliiw    M.  .1..  ix")'l,   1 1.  "270,  17.  f.  18; 

1'.  M.  S.,  ls(i(i,  p.  lilt.  7,  f.  7. 
rt.  ri:i(i'.'iiNiiK   V  MKiiiiAN  \,  K;ill>,  I'lii.,  |>.  >-'iIi ;  ( iiiiii..  l.siis,  |,. -j:;. 

7.  Sy.<rKI'IIANI  A   i,Slc|ili;inM|i\  xi>i  llA  IIA.N  A,  ( 'i^l.,   |i.    hMi*.  I'.    II.     \':i. 

•        S(29i.     liHAiMioNKi.s  \K.  iiini,  OM.  .\!..I  ,  ISIw,  p.-2l7,  7,  f.  I-J.      i'n)liiili|y 

uiil\    ;i   v:ilvr   iit'  (  oii  (iiici>  ;    < '.  ('u!<l;ilu/ 
Fifjs.  !),  III.       (11  \Kiiiri;i{<i-    i:  Mii.i.  vkk  \.  Klnl'.;  Sill., I.,  l>;|"i,   |p.   liJS,    t.  I'.  I  .H  ; 

M.  .1  .  l-".t;   7,  C.  I,  •_'. 
ll-i:;.    SvsDKNDHUM    HI  M -i;  \i  \,  I';!,  li  i.  M  il< ..  :i"i   N  ■  I  >.  1.  U'' ;  M.  .1.  l'''>i>, 
7.   r.  li'  -i'.!;   .M.  I>.,  1:1,  r.  -'it. 
"       14    111.     l,iu  MM-cis  MINI  Ti  -   ( Jrcv.    r.  M.  "!.,  l.>l>."i,  |i.  47. -1.  t'.  I'. 

I'ifi.     17.  liHAliKUNK.MA     AILVNIKIM.     Kilill    Mild     -I'llllll/."',     I>ull.    '\\>r.     Hot. 

(lull.    Mar.  h    lN>',t  ^).  7".,    IM.  ■<».  f.  7,  7:i.      Aiti'sinn 

well,  Aihitilic  (  ilv,  .\.  J. 
('(i((<pNKis  ii(iniv\i,i>i,  Khili.  .Mik.,   '.7,  M,  I'.  2.     <  H'  (liiliiuii-  viiliic 
'•  KihiMiiKA,  Hhrlt.  Mil<  .:!■">.  A  7,  I".  2.      ( 'iimi..t  icll  ;a  lhi> 

•  hiv  wIkii  iIusi'  i\v"  lii;-'.  1  IS,  !9i  reiilly  iiri'. 
MkI,()-1RA   llnKOMMUlM,   Hilll's     I'lit.,  |i.  Sll*.  .'i.  f.  iVl. 
S'l'KI'll  AN()IH-<(  IS  MINll'l'-,  (rl'llll.;    Sin.  S|i.    r..    Nil.     1,  =   (   viIouIIh 

Orf^oiiira,  Khi-li.  Mik.,  ;J7,  1',  f.  .'>. 
KiiAiMioNKis   AKFIN1.<;  (IniM.;    i;a|i|p,-ili;innc)c   CliH'.      rti^'ani^.,    IM. 
•27,  r.  -Jdt'.. 
I'Kl'Hdl'oMiANA,  '  Jiiiii.;  I'olPislxii  ■;,  \a.      I'liuarns., 

•J7,  r.  'H>^. 

"       27.  Di.MKRKi.HAMM  \  I'ossi  Li:,  ( iniii.;   rnu'ains,  27,  ('.  "iti.i      Md. 

•'      2S.  HiiAi'MONKis  I  •NKAHi',  •  Miiii.;    I ' Hi,'.! 111'*.,  27,  f.  2i)2.      Ni.itinyliani, 

M.i, 
•'      29.  "  MicjiKin.  fiile  11^.  s. 

FiK*^.  oO,  31.    <'Yfi,(.iK.i,i>A  cdMi'iA,  Ki;.  \'.  H.,  92,  1".  Ifi  22. 

"        \Vl,  :«.      DeNTICI  I,A   ANTII.l.AKIA,  (  It'Vl'.,  1H78,  |'.   14,  4,  f.  2t). 
l"i>r.    34.  L'X.MllKM.A  Stuudkhi,  Clevc;   N.    li.    K.    I).,   p.  "i,  1,  1.  •">.      II.  I.,  S. 

Hiiys  ligiire  \h  ton  M-rnrnPtrical,  louks  loo  nwxih  like 
Naviciila.     Copy    from    (lew.   is    the   only    oiif    at 
hanfl. 
Fips.  35,  36.    Cocci. NKi-  wihict-a.  (inm.,  18(i8,  p.  14,  1,  I'.  '.I;   V.  H.,  30,  f.  8   10. 

=  ( '.  (  alifornit'a,  (rr. 
Fig.    37.  "  Ki..>N«ATA,  Khrli.  .N[ik.,  7.  38,  f.  S;   14,  C.  31  ;  8,  3,  f.   I., 

i'Xwrrz:  ( ',  plai'f  nl Ilia,  var. 
"      .'18.  SvKnENnRirM  i>iadf;ma,  (jrcv., '(W,  tigs.  1 1-13. 

"      3&.  Hhaphonkis  Ki-i  [s  ?  Klirli. 


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Figs. 

15,  16. 

<t 

17, 18. 

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19,  20. 

Fig. 

21. 

Figs. 

22,  23. 

Fig. 


24,  25,  27 

26,  28, 29 
30. 

31. 
32. 

33. 
34. 
36.' 

36. 

37. 

38. 

39. 


4U. 


f'LATK  LXrV. 


BiDDUi.PHU  (Zyufworos)  ciRCixrs,  Biiil. :  N.  Sp;.  p.  11;  f.  19,  201 

V.  H.,  lO-S.  f.  13. 
Dhlauia  (  lvthkata.  Rhrb.  Mik.,  18,  f.  100;  M.  D.,  43,  f.  66. 
MiTKA,  Baiipy,  Sill.  J..  1866,  p.  4)  1,  f.  6;  V.  H.,  106, 

f.  12,  13.     Si/c  somewhat  exaggerated. 
CAPRFX)i,us,  Ehrb.  Mik.    35.4;  18,  f.  8,  5;    18,  C.  101, 

102;  M..J.,  185f   7.  f.  63-60. 
BiDiU'M'HrA  ( ZyKocpros)  qiTADRiroRNi.o,  (Trim.;  V.  H.,  106,  f.  .5-7. 
rRicERATH'M  SHAnBOi.Tii.  L.  W.  Bailey,  B.  J.  N.  H.,  p.  .342*  1, 

f.  60,  r,i. 
Bii>i>ri.i'HiA,  iZygooeros'l  orcinKNTAUS,  L.  W.  Bailey,  B.  J.  N. 

H.,  p.  343,  2,  r.  66-68.   Prol>ably  a  small  variety 

of  Z.  Mobilennin. 
Anai'LI's  (Biddiilphia)  BiRr).«TRATT'9,  V.  H.,  22b,  f.  16;  103,  f. 

1-3.     Cul. 
Hemiacliis  APFtNis,  (Trnii. ;  V.  H.,  106,  f,  10,  11. 
(tomiothei'ium  oi)ostki/.a,  F^hrb.  Mik.,  33,  15,  f.  16;  18,  f.  94  ; 

M.  .J.,  '866,  PI.  7,  f.  47,  48;  Prit.  p.  864,  6,  f. 

29;  V.  H.,  106,  f.  11,  12. 
Hkmiai'U's  Poi.YCYSTiNORiM,  Ehrb.  Abb.,  1876,  1,  f.  12-16. 
Rhizo,soi.ima  (?)  Pii.Eoi.us,  Ehrn.  Mik.,  IH,  I".  103;  Prit.,  p.  866. 
Hkrcotheca  MAMMILARI8,  Ehrb.  Mik.,  33,  18,  f.  7;  Bot.,  867,7, 

f.  36;  M.  D.,  43,  f.  31. 
Hkmiaitlu,«  poriYCisTiNORUM,  Ehrb.  Mik.,  .36,  f.  43;  Abh.,  1876, 

1,  f.  12-1.6. 
"  BIPON8,  (Kbrb.)  <ir(in.;  V.  H.,  103,  f.  6-9. 

GoNioTHFX'ii'M   MONODON,  Ehrb.  Mik.,  18,  f.  97;  33,  13,  f,   12; 

M.  D.,  42,  f.  37. 
"  niDYMUM,  Ehrb.  Mik.,  18,  f.  104 ;  M.  D.,  42,  f.  30. 

"  RoGERSii,  Bail.,  Sill.  J.,  March,  1844,  p.  30i ; 

Mik.,  18,  f.  92,  93 ;  M.  J.,  1866,  PI.  7,  f.  4:^-46. 
"  OBTCISUM,  Mik.,  18,  f,  "5;  Prit,  p.  864.  VirKinia. 

Hemiaulus  CALiFORNirtTS,  Kbrb.,  3:\  13,  f.  16;  Prit.,  p.  861. 
Amphitetras  ELFXtANS,  (rrev.,  T.  M    S.,   1866,  p.  9,    2,   f.   24. 

Monterey. 
Periptera  CAPRA,  Ehrb.  Mik.,  18,  f.  99;  M.  D.,  43,  f.  67 ;  =a 

Dic'liidia  oapra,  Ehrb.  Ber.,  1844,  p.  79. 
Syrinoiihum  simplex,  L.  W.  Bailey,  B.  .1.  N.  H.,  p.  34.3,  2,  f.  66. 
"  Americana,  L.  W.  Bailey,  B.  J.  N.  H.,  p,  342,  2, 

f.  62-64;  Prit.,  866,  7,  f.  .34;  V.  H.,  106,  f.  2. 
Amphitetras  ANTEniT.rviANA,  Ehrb.  Mik.,  21,  f.  25;  19,  f.  19; 

K.  B.,  19,  f.  3 ;  29,  f.  36 ;  S.  B.  D.,  44,  f.  318. 

KigureN  only  half  the  usual  diameter.  Virginia. 
'•  MiNCTA,  (irev.,  T.  M.  S.,    1861,  p.  77,  9,  f.  U. 

Maryland. 


I'l-.i,.  i,xi\- 


PI.ATK  I.XV. 

I'iunri's  iiiauiillW'il  '***  (|i«ni(iter*. 


Ki^     1.  Hiii/..s,>i,K\iA  <!i!\(ii,is.  II.  I..  >•'.,  Prof.  A.  S.  M.,  1«K2,  |..   177. 

■I,  f.  Klrt. 
"      -2.  •'  Kriknsis,  II.  L.  S.   Lens,   1.  p.  4-1;   A.  (l  .1.  M  . 

1S7S,  |i.  1.'),  :'.  f.  7;  Srii.  Sp.  T.,   No.  447;   V. 

II„  7'.i,  f.  !» 
Kij(s.  .V"..  "  A.mi:hi(\na.  (Kliil..):   l'.ri>;lilwt'll,  M.  J.,  ISoS,  I'l. 

5,  r.  :!. 
Ki,,.    ♦;.  "  ("ALYi'TRA,  Kl.rl..;  M..1.,  IM..-.,!. -J,  ISoS.     Copie.! 

liy  Hritflifwt'll. 
"      7  «  oHNii  h(m;i,ossa,  ( Khrli.):  r>riKlitwell,  M   .).,  1S")S. 

.'.,  r.  1.     .A.  Vitr.  cjilypti-ii,  (ijj.  t>. 
I'ik's.  >!,(  17,  IS).  I'YXii.i.A    Vmkkicasa,  (liim.;  V.  II.  h:I-,  f.  IS. 
"      '.I,  Id.         ('HAKioiKitos  iNcruvuM,  liiiil    N.  Sp„  9,  f.  :><>;  M.  .).,   l><nH,  p. 

1(17,7.  f.  9   11. 
Kiii     11.  "  iiouKAi,!:,  r.Hii.  N.  Sp.,  S,  r.  2'J,  •2:{;   M.  .1.,   IH.'.C,  7, 

f.  1-2   |.">;  T.  M.  S.,  18tio.  4S,  2,  f.  18;   152.  7. 

r.  i;!. 

"       i-j,  "  DiiiYMiis.  Klirl).  Mik.;  ;io.\,  17,  I".  •') ;   18,  f.  4  ;  M, 

.1.,  l8.-)(;,  IM.  7.  f.  .•'.-7. 

"       i;;.  •'  (;Ai.iKoKNiriTM,  (Jnm.;   \'.  II.,  82,  l)is  t.  8. 

risis.  |4-Ii).  '■  DiiiYMi-s,  lOlii-l).     Siime  ;is  I'lK.  12. 

•'        7,  18.        Py.vim.a  Amkrkan'a,  ride  H^.  >;. 
\.•\^r_    19.  "         sriu-i.ATA,  (Iniii.;   \'.  M,  SS',  t.  ti. 

I'ijrs    'JO,  lis.  '  liilKKAI.K.   Hilil.      SllllU'  il.>  lig.   1  1 . 

Ki^.    -21  Kyxiu.a  KiTToNiANA.  (4ruii.;  V.  li.,  S:?,  1'.  10,11;  8.S,  Ms  f.  9-1 1. 

'•      -j-j.  (H  AKTotKKos  MONu;.K,  (rnin  ;  v.  H.  82,  Ilis  t.  4. 

"      lM.  I'YXii.i.A  DiiiiA,  <Jnni.;   V.  H..8.'i,  f.7,8;  s:{l.isf.  12.     A  vaiielv 

"  Irom  .MniUi'rev,  Cal. 


Plat..  1,.W 


I 


!! 


I 

i 
I 


I 


.  M 


i'[,ATK  i.xvr. 

I'MifUi'i's  innunltli'd  VNi  (lliimi'tcrs. 


Kigs.  1,  '2.         StkpiianoI'YXIS    (CreHWclliH,   (ir»'v.)    TriminA.    Rnlfs.,    I'rit.,    p. 

'<'>*\:  VI.  .1.,  lS.-)Ct.  K,  f.  14. 
.'      ;{^  1.  '•  (("reswclliii,    (ivov.)    TUiiRis,    Riilfs.    I'rit.,    82(1, 

•'),  (.  74:  Sm.  Sp.  T..  No.  .V)?  ;  V.  II.,  S3,  tris 
f.  1-J. 
pi^s.  ."),  (i,  7.  "  (CrcsswclliM,    <lrcv.)    IT-Itox.    lialfs.    I'rit.,    H2fi. 

•'.,  r.  7.".;    M.  J..  1H">!),  S,  f.  \r>,  1(>. 
S.  !».         ('y(  i.oTKi.i.A  Kui',T/iN<iiANA,  Tiiw.;  S.  H.  P..  ■'>,  f.  47;   H..I.  N.  II.. 

p.  :W1,   1.  f.  1".:  Sin.  Sj).  T.,  No.  lOX;  V.  II., 
'.M,  f.  1,  4  6. 
Fig.    10-12.  "  i!..Tri,A,  K.  B.,  2,  f.  4  :  -S.  P..  I>.,  o,  f.  .->();  Sm.  S,..  T.. 

No.  in. 
"      l.S-1.5.  "  .MKNWiUiNiANA,  Ki{.  K     B.,  30,  ('.  '18;  Sni.  Sp.  T.. 

No.  104  :  V.  H.,  1»4,  f.  1 1    13.=(;.  .Vstniea,  Kj?., 
=  ('.  <  )rt'}{oni('ii,  Riilfs. 
Figs.  IT),  17.  "  STRIATA,  (inin.;  V.  II.,  ".Vi,  I'.  i> -8. 

"      IS,  19.  "  AKTiQiA,  S.   H.  I).,  5,  f.  4'.t:   V    H.,  92,  f.  1  ;  Sm.  Sp. 

T.,  No.  imi 
"      20,  21.  "  .oMPTA,  Kk.  V.  H.,  ;t2,  r.  lH-22. 

Fig.  22-24.  ■'  (H'Ki{<  Ti.ATA,  Kg.  K.  B,  1,  f.  1;  Ral).  S.  D., 2,  f.  1; 

S.  B.  I>.,  •%  f.  4S ;  M.  D.,  12.  f.  21  ;  V.  H.,  93, 
f.  22-24 
"      2").  PoRPKiA  .jiADRicEPS  Bail.  I'ril.,  S.'A  6;  f-  <•;  'I'-  M.  S.,  1865,  p. 

.■)2,  ti,  r.  18,  19;  V.H.,9ol>isl'.  14.    (lump.  Bay. 
STiaMtANoi>is('tis(;AR(:;()NKNsis,  (iruii.,  V.  H.,  95,  f.  1,2.    N.  .Vmor.? 
Niagara,  Eiuh.;  V.  IT.,  95,  f.  13,  14 ;  Sm.  Sp.T., 
No.  505;  Mik.,  35a,  7,  f.  21,  ■.:2. 
FoRPKiA  itiJADRicKPS  Orev.  Trans.  M.  M.,  lS(i.5,  58,  f.  IS. 
Plaoiogramma,  (Irev.,  T.  M.  S.,  18()fi,  PI.  1,  f.  3.  (3). 
EucAMPlA  VIROinica,  V.  H.,  95,  his  f.  6.     Richmond,  Va. 
PoRPEiA  QUADRA lA,  (irt'V.,  V.  11.,  95,  iiis  f.  15;  T.  M.  S.,  18G3,  p. 
65,  6,  f.  20.     Santa  Monica. 
Figs.  34,  35.     FiK^AMPiA  /...diacus,  Ehrb.,  K.  B.,  21,  f.  21  ;  S.  15    I).,  (iO,  I.  299; 

Prit.  9.S7,  2,  f.  43;  V.  H.,  95,  f.  17,  18. 


Figs 

26, 

27. 

i< 

28, 

29. 

Fig. 

30. 

31. 
32. 
33. 

I'li.l..  I,.\\ 


rif.,    J). 

.,   82(i, 
S3,  tris 

.,    H'ili. 

X.  II.. 
V.  IT., 

Sp.  T.. 

Sp.  T.. 
iPii,  Kg., 


Sm.  Sp. 


.  H.,  it:', 

1805,  p. 
inp.  Bny. 
.  .\nier.  ? 

D.Sp.T., 


1863,  p. 

I),  1.  2m ; 

8. 


ii    • 


I'hATK  F-XVn. 


Klsrnri's  iniiL'iilllrd  "ioii  cllmnpfprs 


Kit,-. 

iMiT. 


rii-s 


Fi 


1.  Ha.  ,1     ;,x-TiirM  Kiit.  vtim.  Sl.ii.l.:  T.   M  S.,   1851.  p.  14.  1.  (.  1; 

I'ril  .  SC.:!,  (i,  f.  -jti. 
•J, ;!,  4.  "  \  uuANs,  l.iiiiil.T,  T.  M.  S.,  is(;4,  p.  H,  S,  f.  l-(i; 

Sill.  Sp  T..  Ni>.  '"iT,  =■•  l'>.  ciir-iituiii  iiml  fiirciilmii. 
-).  Pki:iptimi\  ciii.VMYDOi'iiiiHA,  Klii'l).  Mik.,  M.'i,  18,  f.  !»rt;  I'rit.,  Stl.'), 

S.   f.  'J.').     A   iiDiu'iiiitv,  eviili'iuly  only  ii  fri^f- 

iiifiil  cil'  Didiiiiiit  or  the  like. 

STKIMIANO(»n\lA    V.   I|N01TV(  Ills.  Kllllt.:  V.  H.H3,  IPF.  f.  '2-4.    (MilS- 

touoniii ). 
Stki'Iianoi'vnis  mmhaia,  KIhI..,  IS,  T  7  ;  V.  H.  8:!.  ler.  f.  11^.  14. 

(  I'vxiciii'iila  liii.ltMla?). 
Stf.piianoooxia  iMi.YooNA,  Klipl).  Mik.,  .'W,  18,  f.  1 0 ;  Siii.J.,  .\piil 

1845,  p.  :V2t>,  4,  f  lo;  M.  D.  48,  f.  80. 
STKriiAVdPYMs  ('ami'Kaciiiana,  (tiiiii.;  Siiiiii.  \t.,  f)5,  f.  19,  2(t. 
Stki'HANocoma  (CliKloiiraiiimii)  Camkounh'IM.  (iriin.,  88,  liis  f. 

18,  19. 
TiiOciio-^iiiA  siMNo.sv,  Kitt..n:  V.  II.  88,  his  f.  14,  1.=).  17.     Noitiiiif- 

llMlll,   M(l. 

STKPHANo(t()NiA  I'oLYcoNA,  Khrl>.  MIk.,  83,  18,  f.  10 ;  Sill.  .1.,  .Vpiil 

ls4."i.  p.  82»),  4,  f.  13;  M.  .).,  IStlO.  p.  (18,  T),  f.  8. 

Pkriptkra  TKi-KAci.AniA.  Kiirb.    Mik.,  .88,    18,    f.  9.     .\  xenu.s  of 

(loiibtt'iil  j!;ennineiiess.     Still  no  liiinu  in  retiiin- 

iim  it  ii8  (loos  V.   M.     V.  H.,  88.  ter.  f.  7-9 ; 

Prit.,  p.  8«r),  (i,  f.  80. 

20.  SiKPiTAN-oi'Y.Vis  (  ORONA,  <Mun.V  V.  H.,  88,  ter.  t'.   10,   ll.=Syste- 

plitmea  corona. 
•Jl.  '•  (Cieswellia)  laiii-  (irev.:  T.  M.  S.;  18(i(t,  IM.  8,  1. 

7.     .Monterey,  Vn\. 


7. 

8. 

9, 

10. 

11 

,12 

l:'. 

14. 

).' 

.  1(1 

17 

-19. 

il 


11,. I.-  I.Wil 


r.  1 


PLATK  I.XVIII. 

l''lL'nri'M  iniitfiiltlfM  'i^hi  (lInmi'lci'H, 


\.  u 


FiK.  1. 

"  2. 

•'  X 

"  4. 


ii 

«. 

(t 

7. 

11 

H. 

1( 

•)-n. 

fi 

i:i. 

11 

13. 

Figs 

.14, 

15. 

u 

16, 

17. 

l< 

18, 

19. 

Fig. 

20. 
21. 

u 

•22. 
23. 
24. 

25. 


ti 

26. 

(( 

27. 

Figs 

.  28,  29 

Fig. 

30. 

(t 

31. 

(( 

32-34 

KrTii.AitiA  Ki'sii.oN,  (ir.'v.,  M.  .1..  isf;3,  p.  228,  9,  f.  1.     Nfontcrey. 

m;.\Ai;<iNA,  «iriin.;   V.  II  ,  HI"),  •'.  «.     I^.  niniiifii. 

|{iiAi'iioNr,is  HKi.(iit  A,  (iriin.;  \'.  II.,  ;!«,  I'.  2.'),  ( K.  pn^tiiiHii,  var.) 

"  ()KK(inNi.A,  Kliil..  Mik..  IS,  f.  SI!;  Ai)li.,  IH70,  p.  59; 

Mik.,  37,  2,  f.  1.1 

►  i.nMiNKNsiM,  (iniii. ;   I."«i2,  p.  382,  7,  I'.  •">;  V.  H.,  36, 

I'.  :tl.     .Iiiduiiitr   I'v  Oniii.'s  original   figure,   tliis 

IIIIIV    ln'  II  ("orcdni'l.-- 

Staukonkis  MtiMMmAMMA,  Ku.;  K.  I!.,  29,  18. 

"  MONiMiKA.M.'MA,  Kliili.    ( )ni' ol' Fill l).V  (linil)tl'iil  species, 

111'  Maw  only  a  t'laumciil  ;  pniltalily  H.  gracilis. 
Navicula  (iimiA,  (not  Siaur(i|>tiiii,  llal>.,  9,  f.  3);  K.  B.,  28,  f.  70; 

Hclini.  .\t.,  45,  (.  V>-h]  -,   V.  H.,  .\,  I'.  12. 
Dkntici'I.a   vamka,    forma    niiijor    IVdiiinu ;     V.    II.,  49,  f.  4-H. 

( ieysiTs,  ( ';ii. 
Navici  i.A    riiiNoDis,  S.  I!.  D.,   II,   p.  94;    Lewis,    N.  and   H.,  Sp., 
]..  8,  2,  r  ti;   V.  II.,  14,  I'.  XI a. 
"  Hkaunii,  var.  Stanroiu'irnriiii',  (irim.  ;   V.  II.,  ti,  f.  21. 

Dkntkdi.a  thku.mai,!-,  K.  I!.,  17,  f.  ti;   Kali.  S.  I).,  1,  I".  3;  V.  H., 
49,  r   17.  IS. 
i.auta,  Hail.,  N.  Sp,,  it   I.   1.  2;   V.  H.,  4i»,  f.   1,  2;  Siu. 
Sp.  T,  N.I.  12.'-». 
CoM.Kctonkma    siMW'oiiAK.HlONs,     Tiiwailfs,   iSilii/.()ni'ina  lai'ustris, 

.\k.);    V.  II.    1').  r.  41);  S.  H.  I).,  5(4,  f.  353. 
Bactkkiaktru.m  cuKVATiM,  Sjiiiil.    T.  M.  S.,   18.")4,  p.  14,  1,  f.  2; 

M.  I).,  43,  f.  18,  =  (li.  varians). 
Tahbij-ARIA  SdiiosA,  Flirli.  .Mik.,  14,  f,  ■)4;  4,  .".,  I'.  24  ;  3,  4,  f.  31. 

"  KoiiisTA,  Klirl..,  33,  11,  f.  !•■);   I'ril.,  S07. 

EUNOTIA  HiiEl'H,  Ehrl..  Vlik.,  17,  1.  f.  25;  3,  2,  f.  12;   K.  B.,  29,  f,  155. 
Stauiuj.vkis  I'usiM.A,  Klirli.  .Mill..  1S70,  p.  59,  2,  I,  f.  4l».     Very 
nearly  it'  not  (|iiiti'  the  sanu-  aw  tig.  6. 
(iKAtiLK,   Mirli.  Mik.,  Iti,  I,  1.  4  ;    17,  2,  (.  15  ;    17,  1,  f. 
5;   K.  B.,  29,  1.  3. 
Ki:<ii)iA"(iimiA,  Bail.,  MSS ;  Frit.,  852,  3,  f.  22. 
Kpitiikmia  Muscli.us,  Kg.,  Large  Ibrm;  V.  H.,  32,  t'.  14,  15;  K. 

B.,  3(1,  f.  ti;  S.  B.  D.,  1,  {  10. 
Rhizosoi.knia  sTYLiFdK.Mis,  Bright,  M.  .].,  185ti,  p.  9'^,  5,  f.  5; 

Frit.,  865,  7,  f,  32  ;  V.  H.,  7K,  f.  1-5. 
Cosi'iNoDiscus  i.KicKNTRtiM.  Klirli.  .Mill.,  1870,  \>.  53,  Fl.  2,  2,  f.  9; 
areolation,  more  or  less  distinct  hexagonal.  Htim- 
liold  valley.     Oregon. 
Hyalodictya  Dianak,  Ehrh.,  1S70,  p.  57,3,  17. 
Bacii.laria  paradoxa,  Omelin.  Sill.  .].,  May,  1842,  p.  101,  2,  f.  5; 
S.  B.  D.,  32  and  tiO,  f.  279;  Frit.,  784,  4,  f.  19; 
9,  1".  166,  167. 


rial..  I, will 


I 


<0; 


I 


i 


IM-ATK  liXIX. 

l''lttin'i'S  iiiiiunlfli'd  Mki  illuiiiclcrx. 


l<'i>{N.  1,2.         PonoKi'ilKNlA    lUiLKYi,   Ivlwiinls;   Ia-wIs,  N.  miiiI  H,  p.  », '_',  f.  8 ; 

Sin.  Sp.  T.,  No.  I"j;{.      Ni'w  JoiMy   sliori'  (^ 

Lii'ni<)|iliiii'!i,  Hiiilfvi  i 
V\i:.   :i  I'(iiM,Mi<.\   VAUiMiAlA,  A.  S.;Srlim.  .\t.,  Nil,  f.  .S.     Siinia  MonicH. 

Kius.  4,  5.  •'  MACiii.ATA    S.   H.   I),    H),  (.  ;W.S;  Sm.  Sp.  T.,  No.  420: 

O'N;    I.  I).,  2ti,  f.  oil. 

"        H,  7.  TkK  KRAIIIM    I'KNTAt  HINTS,    Witllifll  ;    M.    .1.    I  .^oN,    12,    f.    10-12. 

( ,\iii|iliitt'lrii.s  oi'iiiita). 

Kijr.    8.  AlTINOCVfLlIS  TKIllAlMAns,   Kopff,   M.  .1.,  l.H."))S,  p.  2.S-8,  I',  o.     Hil, 

ari'oliition  iiikUt  hinlu-r  powt-r. 
"      9.  ArriMsri-H   sirhs,  Klirl..  Mik  ,  :t;!,  1.^,  f.  !>;  T.  M.  S.,  IHC.U,  p.  147, 

7,  t'.  14.     Ciiirifil  aloiiK  for  veins,  proves  to  be 

no  (iiiitoiii. 
"      10.  SiRiKKi,i,A    Katkayi,    .\ .    S.hiii.   At.,  21},   f.   lS-21.     Viineonvers 

IsIi'IkI. 
'•       11.  Stii.tu1)Ks.mis  cKATicriiA,  (Jri'V.;  C^nrireliii  iiiitifiilii),  II.  L.  H.Sp. 

T.,  No.  oOH.     'riiisisiir<p«.rannliilHlit'itth.  There 

is   a    variety   ol'    tliis    loriii,    perhaps   diflerent 

species;    also   u    marine    form    found   at    New 

l^indoii. 
"       12.  To.\i)Nii)iA  (iHMioKiA.NA,  Doulv.;  T.  M.  S.,  1S5S,  p.  ht,  :!,  f.  1  ;  H. 

.J.  N.  H.,  iS7'.t;  M.  I).  42,  f.  42. 
Im«s.  ];;,  14.     Cami'yi.oois.  IS  .osTATiis,  VV.  S.;  S.  H.  I).,  t),  f.  52;  M.  1).,  12,  f.  ♦}. 

(C.  Hil)ernii!iis). 


I'l,.i..  I.XIX 


t 


M 


IMiATK  FAX, 

Fii:iii"s  iii;ii.'iiitio(l  .VHi  (lliiiiictcr'". 


FiK».   I,  -.  ('AMrYMlBIStl'S  CRlBKOSb'S,  W.  S.,  S.   B.   I)., 7,  i.  ")■");    A.  N.  II.,  ISoI, 

1,  f.  8. 

KiR.    •'<.  "  K()1HJ.''()N]|,  S.  H.  !).,(),  t.  (i.'>;  Sclmi.   At.,   '>;;,  I',  ."i. 

Saiiir  us  ('iiiii|i.    iinpfi'iiilis,  (inv.;  Sclim.    At., 

o'i,  I'.  7;  •');>.  I',  (i-7      Fifj^.  1').  !•>,  iH'i'  |irol)al)ly 

only  viu>.  of  llodjjsoiiii. 
•'      4.  "  Sa.moknsis,  (n-mi.;  St-lim.  At.,  1."),  f.  IH-JO. 

Figs. ."),  6,  7.  "  AROis,  Biiil.  M.  ( ).,  p.  :i9,  tJ,  f.  24,  25.  Hudson  Ki  vt-r. 

"      S,  0.  "  HAvn.us,  W.  S.,  S.  B.  D.,  (>,  f.  5ii ;   Piit.  \>.  801, 

15,  f.  22,23;   V.  H.,  77,  C.  2. 
"      10,14.  ■'  l.iMBATts,  Brelt.;  Scliiii.  At.,  17,f.  1-.!;  «Jrim.,  18«2, 

p.  44(1,  9,  f.  4. 
Fi^.    11.  '•  KAi'Kisi  ,s,  Eliil>.;   K.  .Vmer.,  p.  122,  H,  7,  I'.  14;   K. 

H.,  28,  I'.  12.     Of  (liihioiis  Viiiiu'. 
"      12.  •'  HrMiioi.DTii,  Khi-1..  .U.li.,  IH&l,  K,  f.,  ;!. 

"      18.  •  Mkxica.ms,  Kliil>   Al)li.,  1.S72,  20,  f.  19. 

"       15.  "  .MAR<iiNAiii.<,  .loiinst.  M..I.,  IHliO,  p.  12,  17,  1,  t.  11  ; 

T.  M  S.,  18H(>,  p.  ;{(»,  Fl.  1,  f.  2.     (ill. 
"      Irt.  "  Samuknsi.«,  S(4iiii.  At.,  19,  20,  (ompiire  Hg.  4.     riic 

latter  two  appear  closely  allied  to  C  Hodgsonii, 

li;;.  3.  prohalily  merely  varieties. 


\ 


I 


■hii.  1,XX 


4 


[ 


PLATE  I.XXI. 

Figures  luugulttoci  'm  diamotors. 


Fig. 

1. 

Figs 

2,3. 

Fig. 

4. 
5-7. 

Fig. 

u 

S. 
9. 

AoLACODlscus,  I'ULCHIK,  Norm.  Prit.,  845,  .S.  f.  25;  griinultis  rmli- 

di:ite  and  ratlier  roarse. 
Campylodiscus  HIBERNUUS,  Elirb.  Milt.,  15,  A  f.  9;  f?ciim.  At., 

55,  f.  9-U5.    C.  costatus,  W.  S.V 
HELiuPEi/rA  NiTiDA,  Urev.;  T.  M  S.,  I860,  \).  5,  2,  f.  18. 
Ca.mi'YLOdiscus  NOKicus,  Ehrlt.  Bet.,  1840,  p.  205;  Sihm.  At.,  .')5, 

f.  8  ;  V.  H.,  77.,  L  4-6. 
StICTOUISCUS  GitEVlLLlANU.",  W   aiul  C,  1.,  |>.  5,  1,  f.  4. 
Cymatopleuka  cAMPYhouiscus,  Bail.  B.  J.,  p.  350,  tig  J,  (|.  F; 

Sni.  Sp.  T.,  No  64. 


i\   ; 


M.ii-  1,X\I 


ni.li- 
At., 

[.,  ")5, 

q.F; 


I 


F-  i 


PLATE  liXXIl. 


P'igiires  ini«{;nitic(l  '*W  diiiiiR'toi's. 


p\fr_    1.  C.\Mi'Yl.()i)is(jiis  iMPEiiiALis.  Cirev.  T.  M.  S.,   18t)0,  p.  31,  1,  f.  3; 

Schni.  At,  17,  f.  20  ;  52,  f.  7  ;  53,  f.  6, 7.     C'iiin].. 
Bay. 

"        2.  "  BIFUHCATAS,    A.   S.;    Sl'luil.    At.,   52,   f.    S.      CiUUl). 

Bay. 

"      3.  "  AUORNATUS,  A.  S.;  Helun    At.,  51,  f.  5;  52,  f.  3. 

Canij^iHchy  Bay. 
'■      4.  "  Ralksii,  S.  B.  D.,  30,  f.  257  ;  Schm.  at.,  14,  f.  1-3. 

Striae  more  decidedly  radiate  than  shown. 
»      5.  "  <oN('iNNU.s  Urev.,  T.  M.  S.,  18(>0,  p.  30,  8,  f.  2; 

Schni.  At.  18,  f.  16,  17. 
"      f).  "  c:ONCiNNUs<,  var.  lineatiiH,  Grim.     May  be  a  variety 

C.  Hotlgsoniis  or  .)f  imperialis.     Caiup.  Bay. 


It.i..  lAXII, 


( 


Fir. 

1. 

II 

2. 

II 

3. 

II 

4. 

Figs 

5,7 

Kifr.  (). 


PLATE  I.XXTTI. 

Kiirinvs  nirtKiilflprt  •'>"«  (llninotors. 


(JAMPYLonisrxift  MuLT-ERi,  A.  S.,  Schni.  At.,  14,  f.  m. 
"  AMUiGtrus,  Cirev.;  Sdini   At.,  18,  f.  24. 

«  Clypeus,  Ehrl).  Mik.,  10.  1,  f.  1 ;  2,  f.  21 ;  Abh. 

1869,  1,  F,  f.  1 ;  K.  R.,  2,  f.  5 ;  V.  H.,  75,  f.  1 ; 
Schni.  At.,  5r,,  f.  1-3  ;  54,  f.  7,  8. 
TABULATDs,  A.  S.,  Scliiu.  At.,  54,  f.  4.    Camp.  Bay. 
EcHBNEiR,  Ehrl).  Schm.  At.,  54,  f.  3-6;  V.  H.,  76, 

f.  1,  2. 
Sf'HMiDTii,  (Trim.;  Schm.  At.,  15,  f.  12;  53,  f.  10. 
Var.  of  C.  irrperialis? 


i< 
(I 


|i 


i 


Ahh. 
,  f.  1; 

».  Bay. 
1.,  76, 

f.  10. 


'I..I.'  I, Will 


^^^ 


\' 


I'liATK  i.xxrv. 

Kl\{iiri"i  iiiii>;nilliMl  "kmi  illiiiiiotiM's. 


h'if;.    1.  (;os(iNonisriis  C'lJAssi.Ts,  (Oji«|H'(|(MliHtiis)  Hail.;  Sill.  J.,  IS.'w;,  p.  4; 

Schm.  .At.,  <>1,  {.  19.     Virginia. 
I-'Iks.  •_',  4.  •'  Snr.,  Wiiliich.:  T.  M.  <'.,  ISHO,  p.  ;{8,  2,  f.  12  ;  Schm. 

.\t.,  nS.  r.  41,  42,  4H,  47  ;  V.  H.,  12it,  f.  (1.     In- 
sorlod  iintler  the  impression  tin'  iliutums  wtTt- 
fodiiil  in  llie  fosHil  deposits  of  Viryiniii.     -Are 
properly  Kast  iniliii  forms. 
V'm.   ;i.  I'liAspKDOiiisrtTs  MicRoDisciTS;  Klirh.  Mik., '?:!,  17,  f.  4 ;  Frit.,  p.  8IV2. 

"      .").  "  is(»i»oiiu.«!,  (<'<>'«'inodiseiis).  Klirl).   Mik.,  HIi,  17,  f. 

.S.     N'irginia. 
Kiys.  6,  7.        CosfiNODisrus  patina.  K;;.   K.  H.,  1  (.  15;  Sill.  J.,  1K41,  2,  f.  13. 

var. 
.VcTiNOiTYcnus  iMiNUTr.s,  (irev.,  T.  M.  S,  !86(i,  p.  5,  1,  f.  12. 
Mki.ohiha  Baii.kyi,  (Cesto(lisciis)  Am.  Q.  J.  M.,  1878,  p.  19,3,1'.  9. 
.\(  riNoiTVcHi's  (iRUENDi.Kin,  Selim.  At.,  100,  f.  4.     St.  Monica. 
"  f>M)ULATi;s,  var.  Crennlatiis;  Schm.  At.,  1,  f.  1-4, 

109,  (.  1;  M.  D.,  19,  f.  7;  V.  H.,  22  bis  f.  14. 
Maryland. 
Co.><ctNoi)iS(  us  iNTKKMEDius,  Khrli.  Mik.,  :W,  13,  3. 

.Vc'TINOITYfUITS  KLEGANS. 

Peiustki'UAMA  Hailkyi,  Ehrli.  Alili.,  1870,  p.  57,  3,  1,  f.  13. 
Likely  only  a  plate  of  Slephanodisciis  Niagarae. 

Xanthiopyxis  umbonatus,  (Jrev.;  T.  M.  f^.,  1866,  p.  2,  1,  I'.  T). 

Discir,*  P()R(  K.r-AiNKous,  St(Mlder.  SKnlder  constituted  this  genus 
ands  pecies.  lie  never  figured  it;  mine  is  a 
figure  from  iiis description.  A.  J.  M.,  1879,  f.  14. 
IH.  I'kristkfuania  kutyciia,  lOhrii.  Mik.,  :'.51'>,  4,  f.  14.    ('al. 


Fig. 

.s. 

Kigs 

9,  10 

Fig. 

11. 

(1 

12. 

(( 

13. 

It 

14. 

a 

15. 

It 

16. 

(1 

17. 

<" 


It, I.  l.\Xi\- 


f 


1 


\  I 


) : 


( 


i'l.A'IM'.  I,XX\*. 

I''lulll'i'>  IMI^Ulllll'i'll  ''><MI  lllallll'll'l'-. 


Fill.    ]. 


Kiff.    7. 


Aii.Ai'Dit'sn-  M<Ki,i.i:ifi.  A.  S.  Sdim.  At.,  :'.;!,  1.   1  I.     Nolliiiijliiiiii, 
Mil. 
DKCuin-s,  (rel.ilt'il  In),  St-liiii.  At.,  .i:!.  I". !».   Monterey. 
Srit  Toiii-iris  Mai!1>m  ^MANiH,  rdriiiii  minor. 

^nin.H.x,   A.  S.  Srhin.   .\t.,  7-1,  f.   11.     St.   I'"rnncis(c. 
(ill.      .\|i|ifiirs  vprv  lu'iirly  reliited  to  Ariiclino- 
(iisciis. 
"  (;ai,iF()HN'H  i>,  \:\r<.  (Jrev.;  Sclini.  \\.,  74,  1.9. 

"  *•  v;ir.  fiuMiiitii,  I  Irini.;  Sflini.  At.,  74.  r. 


»      H.  "  Cai.ikoknh  IS,  (iifv.;  l;()s  .\Mi;i'lt's,  Si'lini.  .M.,  74, 1'.  4. 

Ki^x.  !),  !'•.  "  KiTTdMANtsScliin.  At.,74,  f.  Hi  IS.  Niitiiiii;lmn),M<i. 

Fix.    11.  Trii  i:nATii'M    ciNNAMdMi  M,  (Ct'stoilisciis)  (irev.  M.  .1.,   IHCiH,  \>. 

■_';i-j,  H>,  r.  12. 

'•         12.  ( V)>MH)l>IS(rs  TKMls,  (irev.;    \' .    II.,   I'J'l    f.   \',\. 

Fii<s.  KM.'i.    Stii-i<iI)Is(  IS,  A.  Srlmi.  (Ictcrniines  tlivse  as  iiuR-r  plates  nf  Stictu- 

(lis.'iis,  such  as  occur  rre(|iienllv  witii  Axterom- 
plmliiH  i\ni\  Axlerolamiira  unt\  have  f,'iven  rise  to 
M  nurnlier  of  s|)UrioMs  species.  Grnnow  tie- 
terinincs  lliese  three  forms  to  he  plates  of  Melo- 
sira  cleavinera. 

Fit;,    ll'.  Kt'N(irii(iifAMMA   dkhiijs,  (irnn,;  Camj).  Hay.     \'.    H.,  Til!,  f.    17. 

May  he  with,  or  without  the  opening. 

FiKs.  17-Ui.  "  i.Ai'.vis.  (inni.;  V.  II.,  liti,  f.  (I,  7,  ii.     N.  C,  Fla. 


Him 


I'hilr  1,.\\\ 


I 


PI.ATK   lA'XVI. 


l''l'.'Ui'i'>*  miiiiiiltliMl  'lOii  illiimi'IcTs 


V\n».  1.  •-',•<. 


KiK. 


Ki«. 


<i.  (ii: 


y. 


Ki  I'ui.is.  I  >  uiui  s  Kliili,,  s.  It.  I>.,  t.  1.  Hit;   I'rii..  S4H.  tl,  t.  '^ ;   H, 
)•   n  ;   I.rns    V..1.  ll,|i.'J9;  V.  M.,  117,  I'.;'.,  4,  .I.e.. 
I-'IcmkLi,  dr.     Colls  iisiKtlly   (if  (iiiiri' nr   less  Mi'\- 
iiilt'  itii|M';iriini't'. 
"  l!o.iKKsii.  Kiirli.  H.-r..  is4l;  S.liin.  At.,  !f_',  1.  ■').     N..I- 

linu'liiiiii.  Mil.     <  ells  ;ire  ^tiiiu'wliiit  Hti'lialc  as  K. 
:ir({Ms. 
'•  (.rri-Airs.  (;ivv..   T.   M.  S..   IHCi',  p.  HI,   I'l.  U.  f.   :'.. 

Moiilert'v. 
liAi.lAiis.  Iti'iiW-v;   V.   II.,   IIH,   r.    I,  -2;    liail.,   M.  (>.. 
|i.  IV.t. 
••  Cai.ii'oknk  I's,    <lnin.;     (trioniliiliis,  vnr?)      <iiilf  ol' 

Ciilifi.iniM.     \'.  H.,  lis,  f.  H.     Thin  liiis  tlit-  lliifr 
H|>inesjiist  within  the  iiiiiririii,  H.  L.  S., 
<ii,Yi'[:()nrsccs  sri;i,i,ATis,  (irev. 

"  "  (irev.:   Viir.  niiijor,  (inin.;   \'.  II.,  lis,  ('. 

II.     Santa  Monira. 
"  (  Jkisiiwii,  a.  S.,  <v\\m.  .M.,  SO,  I',  (i.     May  lie  :i 

var.  ol'  (t.  sicllatii>.     Cn'Ktt'nl  < 'it  v. 


I'l  .t.  I.\X\I 


I 


j 


u 


? 


*: 


ii 


I 


Figs. 
Fit,'. 

FiRS. 

Fijf. 


1,2. 


3. 

4. 
5,6. 

7. 
8. 


Fif,'S.  y,  10. 


PLATE  LXXVIT. 

Figures  iiiagiiitled  'dHi  iliamoters. 


Craspeiwdiwhts  KLKii.VNs.  Khili.   Her.,  1S44,  \>.  "266,  f.  12;  Sill.  J. 

Apiil  1.S45,  |i.  .S24,  4,  f.  1  ;  Sciini.  .\t.,  66,  f.  1. 

Xottingliani,  Md. 
TmuKRATiu.M  AMBLYCERo.'*,  Ehrli.  Ber.,   .VI.  .).,  18')H,  p.  250,  4.  f. 

14;  Schm.  At.,  1,  f.  25.     Riciinioinl.  Va. 
''  .•^PiNosuM,  Bail.;  Ricd.;  Sdmi.  .\t.,  87,  f.  H 

AcriNOI'IlYCHUS  INTERPI'NI'TATIT.S,  Sliail.,   M.  .1 .,  18(iO,   |).   94,  6,  f. 

17.     Kieliniond,  Va 
AcTiNoi'TYCHUs  Raeanis,  Cliaieiiger,  lSf<7,  7,  f  4.    Sa!it;i  Monita. 
EuPODiscus  RADIATU.-^,  var.  aiiti(|ua,  .1.  |).  Cox.  Kiclunond,  Va.,  \t- 

laiitif  City,  artesian  well ;    Bnli.  Tor.  Hot.  (Hub, 

March,  1889. 
Tkueratium  rti'iNOsuM,  vaf.-*.,  St'iim.  \i.,  76,  f.  7.     Kicliniond,  Va. 


.»■•  i,.\x\- 


>  ! 


i  I 


KiKx  I,--- 
Ki«.   ".-0. 


FiKs,  s,  !i. 


FiK.    10. 


11. 


"      18. 
"      14. 


16. 


I'l.ATK  i..\xvni. 


Fiiiui't's  iMii'-'iiilird  liKi  (liiimi'lci's. 


TKIil'SlNnK  INTKKMEDIA,    tlniii.;    Vlir.   i'.llU.    ToflVV    Hot.  ("llll>,  .\ll. 

-list,  ISSII,  Plate  y;:,  f.  -2,  -'a.      Atlantic  City. 
HiDimi.i'iiiA  \Vi;i.-sri.()(ai.  .Ian.:  V.  H.,  100,  f.  1,  2:  (Jast.  1S87,  p. 
lol,  •_'(>,  r.  ■-'.      i)<)iil)lfiill.v  N.  Aiiier.  form. 
''  A     .iiifstiniiaMi-  variety    n(    tills    ueiiiis.      Kain    and 

S,linlt/.e,   I'.ull.  Tor.   Hot.  Clnli,  \nir..   ISSO,  Plate 
9:!,  r.   I.      Allanlic  City. 
rHicr:itATii  M   iNOKNrATiM.   K.iin    an.l    Sdiult/.e,   Hull.  Tor.    Hot. 
dull,  Amu.,  issii.  I'l.  9-J,  r.  I.     Artesian  well,  At- 
lantic <  iiv,  N,  .1. 
'<  lIi;n,iM!lMANi  M,    Kain   ami   Sclinll/.e.  artesian  well, 

Atlan'ie(iiy,N..I.  Hull.  Tor.  Hoi.Clnl..  .\ngust, 
18.S1),  IM.  ".i;!  f.  :-!,  :'.a.  •' Surface  willi  cent  nil  and 
an>>lllar  elevations;  llie  ceillirl  elevation  sliajifd 
like  a  triim-ated  |)yiainid  ;  |mnclae  radiate  and 
coarser  at  ei-nter." 
"  Kain'II,  var.  eonstrictiiiii ;  Scliiiiiilt.      Artesian  well, 

Atlantic   City.      Hull.  Tor.   Hot.  Cliili,    ISSit,    I'l. 
92,  f. :'.. 
.\(TiNn])i.s(  rs  .Vri.ANTicfs,  Kain  ami  Seliiilt/e.aitesian  well,  .Vtlantic 
City,  N.  .1.     Hull.  Tor.   Hot.  Cluli,  March,  1SS9, 
PI.  92,  r.  7.      Hesendiles  a  form  of  A.  sjilendens. 
KlNoTiA    Amk.kwana,    Kain   and   Sclinll/.e,  artesian  well.  Atlantic 
City,  N.  .1.     Hull.  Tor.  Hot.  ("Inl..  Aiit;.,  l>i,s!i,   PI. 
!I8,  f  I. 
.VuTiNOPrYciii'.-  iNiii  i.Aris.  var.  verrucosa;     \V.  and  Cliase,   PI. 

2,  f.  \ 
SvMiiKi.oPiioKA    TKiNiTAnw     Klu'li.    Her.,    1S44,    p.    .SH;  Sill.    .)., 
April,   I.S4:.,  4,   f.  e;  M.   Die,  19,  f.  «.     Prof.   H. 
L.   Smitli.    thinks  this    is   iiothinj?  more   than  a 
rounded  fragment  of  Triceratiuni  Marylaiidieimi ; 


rounded  fragment  of  Triceratiuni 
hence,  of  no  value. 
lUNBKNANT,  (ireR.,  T.  M.  S.,   1857,  Fl.  4,  f.  48.     Transf.  U. 
till  a  va(;aiU  space. 
(.'HAETOCKRos  (didymus,    Khrb.)?    Hull.   Tor.    Hot.  Club.  AiiKU^t, 
1889,  Plate  92,  f.  6.     ArtcHian  well,  Atlantic  City. 


Discus 


' 


I'ial..  IXWIII 


Hot. 
,  At- 


I 


\ 


PLATE  LXXIX. 

KiKiTcs  iiiasiiiiticd  'iiHi  (liiiim'tcrs. 


V'm.    1.  Aui.isfus  Haud.mani.vno,  (iri'V.;  T.  M.  S.,  ISO*!,  p.  (i,  2,  I'.    i7; 

Si-hn:.  At.   67,  f.  1;  89,  f.  4. 
Fit,'s.  2,8.  "         ITN'CTATUS.  Gniii.;  Sclim.  At.,  80,  f.  10. 

Fig.    4.  "         spiNOsus,    F.  Cliiistiun ;    Selim.   At.,    12^,  I'.  2;     Bull. 

Torri'v,  Rut.  Club,  Msireh  1889. 
Figs,  ft,  H,  7.  "         RFX'Ticui.ATUS,  (rrev.;  T.  M.  S.,  18(i8,  p.  4(),  2,  f.   U»; 

Schin.  At.,  80,  f.  1-8. 
"      8,9,10.  '•        Clkvfj,  (i  im.;  Hchm.  At,  81,  f.  1-4.  • 

"       11,  12.  "         (Jkinowii,  var.  Calitbrnica ;  A.  S.,  Sciiiii.   At.,  80,  ('. 

14;  89,  f.  7,  s. 
"      13,  -A.  ••         I'RUJNOisf.-i,  Bail.;  I'rit.,  p.  845,  6,  f,  1 ;  T.  M.  H.,   1868, 

p.  48,  3,  f.  18;  .Schin   At.,  31,  ('.  6,  7. 


,1,   I.XXIX 


11       •> 


8. 
'J. 

10. 

11. 


iMiATR  LXXX. 

Kl'.'iircs  inii!fnlH('(i  .'^Ki  (lliiinotoi's. 


AiMwis  JoHNsoMi,  .\.  S.,  Sclim.  At.,  ()7.  f.  2.     Crescent  ('ity,  (mI. 
"         sPEciosus,  A.  S.,  Sclini.  At.,  IDS,  f.  '.i.     Santa  Monica. 
"         Hli>DiLi'HiA,   var.    Kilton;    Schni.   At.,  89,1'.  2.     Snntii 

Monica. 
"         Hii>i)iM'Ui.\,  Kitton;  Sc'im.  .\t  ,  (><,  f.  :?. 
"        isTK>*TiNALis,  A.  S..  Schni.  At.  108,  f.  2.     Santa  Moi.ica. 

TEXTIMS,  A.  S.,  Sclun.  At.,  89,  f.  5). 
"        f'AKiBAKrs,  Cieve.;  Schm.  At.,  t)7,  f.  9,  Kt. 
"         iNCKUTtis,  Sclini.  At.,  89,  f.  i9.     Santa  Monica. 
"         AMERicANi's,  p:iiri>.  Mik.,  83,  I'.  14,  2.     Norwicli,  Conn. 
Proii.  a  var.  of  .\.  sculims. 
Ari,A('()Dis<'iJ.'<  RofiKKsii,  (Kiipodiscis)    Eiirl).    Ber,,  1844,  p.  81  ; 
.<v:hni.  At.,  92,  f.  2-(i ;  107,  f  H.     Maiylaml. 
"  AR(ii:s  (KiHKHlis(;iis),  Pensucola;  Sclun.  At.,  4. 

I'RonAHii-is,  S,;lu„.  At.,  30,  f.  1."),  (13-H;)  ;  103,  f.  3, 
4.  Rather  exceptional  fignre.  The  normal  form 
shows  hlank  space  from  center  to  pnu^esses. 


n.ii.'  i.x'w. 


I 


n 


.1 


n  Hi 


19 


It 

,1     ' 

^  '\ 


1M,ATK  LXXXl. 

Kluni'c'x  iiinaiilllcd  ."i(ni  illiimolfi-H. 


V\.    I.  AsTKRoi.AMi'RA   1 1  ii/ri>NM  AN  A.    (AstcMinpliiiliis)    Grev.,   T.  M.  S. 

1S(50.  p.  1 1 1,  4,  f.  1.", ;  Sni.  Sp.  T.,  No.  4it. 
"      2.  "  MoKoNiKNs,  (Jrev.,  M.  J.,   ISfiM,  p.  2'M),  7.  I".    H, 

Sclini.  At..  ;<S,  r.  24. 
"      3.  •'  Rai.ksiana,  <iivv..  T.  M.  S..  I«fi2.  p.  .1(1,  8,  f.  :il. 

4.  Astkromimiams  arachak,   Hieli. ;   Selim.  At.,   HS,  '"    ">.     FiKiire 

shdiiUi  Ik'  sdMiewliiit  «>voi(l. 
'■       .').  \sTERt)I.A.Ml'RA  (iRFA'lI.LKI,  (iiev.,  T.  M.  S.,  1880.   p.  1 1 H,  4,  f.  21  ; 

V.  H.,  127,  r.  12. 
•'      t>.  Ahtkromphai.i'.s  Fi,ABELi.ATU.s  <«rev.,  ('ill.  gnano. 

'•      7.  ("osoiNODiwus  RADiATUs,  Klirl..  Mik.,  39,  :?,  ('.  17;  Sill.  J.,  1842,  p. 

9.i,  2,  f.  14;  K.  B..  1,  f.,18;  S.  B.  D.,  3.  f.  37; 

T.  M.  S.,  IHtiO,  p.  4S,  2,  f.  22;  V.  H.,  129,  f.  •"). 
'•      8.  "  .\wivs,  vnr.  Klirl).  Mik.,  21,  f.  2  ;  22,  -■),  f.  8;  Scliiu. 

At.,  ill,  f.  13;  113,  f.  7. 
"      y.  '  (iioAs,  Ehrl).  Mik.,  18,  f.  34;  K.  B.,  1,  f.  1(5;  Schin. 

At.,  ()4,  f.  1.     I'eils  not  roiuul,  but  somewhat 

angular. 
"      io  "  siiU('ON(;AVii»,  (Iriin. ;  Scliin. -At.,  59,  f.  12,13,15; 

(52,  f.  7. 


II 


I'Imi.   I  A'WI 


ll 


3  i\ 

m 


I'LA'I'K   I  AW  1 1. 

I'';i;m'i's  m;ii;iiilli'il   'i'*'  (liiiiufli 


Kig,    1,  Al'l.Acniiisri  s   \i  \  Id .  \  idiAi  i:i  »,    lv;ill's.:    I'lit.,   |i.  SM  ;  Sclim.   At., 

:>7,    1.    !    S.     ('clliilcs    sorncwluil    Mniiiiliiv.     tuo 
I'Dllllll   ill  liuiii'c. 

"      )>,  "  \i Mii;  Mtrr  v<  r.i  s,  sinnllcr   fnriii,    Ciil.      Sclmi.    At.. 

:i7,  r.  1   S.     Kim  I(M'  litdjid  in  liijiire. 
''      :',.  "  I'ktkusii,   IChili.:  Sclmi.  At.,  ;<•'>,  I'.   It;  41,1".   1.  "2. 

Side    view.      I'loiosiw  rc;illy    in    tlie  iiontcr  ni 

till'  I'll'Vllll'll    llOHXCS. 

"       -1.  "  si>.m:sis,  (iivv.,   'P.  M.    S..   ISdC,   j..    l-.'!!.    II.    f.    H; 

Scliiii    At.,  8t).  r.  lli.     ChI. 
"      :>.  "  KinnNii,  Am.;   I'lit..  p.  81-1.  H.  f.  lM  ;  Sciini.   At., 

■M;,  f.  •")  7  ;  41,  f.  t);  M.  .1.,  isno,  p.  !»•=>,  (i,  f.    IH. 

AreolMlion    liki-   Ctc^cinodiHcns,     iriinf    or    Icsm 

liexauiiiiiil 
Figs.  6,  7.  "  I'ktkksii,  Klirb. ;    lius.  :'.,  (1,  7  Mi-f  viirielii's  of  the 

•iiinii"  «pecifs. 


'\''i 


i'l'>>.   l.WXII 


of  th 


1 


*  f 

I, 


ii 


i 


\i 


I, 


\'\'J.  I. 

"     :i. 
"     4, 


"     «. 


"     s. 


it 

it. 

1(1. 

11. 

I'i.i,- 

i-J. 

i.". 

.. 

14. 

lo 

Kitf.    HI. 


IM-ATi;  I.NNXIII. 

Klunr.'-  im.u'iiKli'cl  rm  illjinH'ttTs. 


t' VMPVI.nl.lxl  -  t  ililiKNMlM'l  XNO".  <*nill.:    Scjllll.   At.,   I 'i.  f.  ■"'. 

-TKi,i,ATr>,  liri'v..  M.  .1..  IS.'i'.t,  p.  I ■'.7.7.  !'.:<;   I'lii. 

|).  7".i'.' 
«'  riiMMi'iiANs,  .\.  S.,  Scliiii,  .\l..  !■'>,  f.  4   .'). 

"  ( ,  i!i  KNin.Kini,  I  Mini.:  Scliin.  ,\t.,  15,  I',  I.  -.  n'>t    '1, 

r.  i;;.     ('!iiii|i.  r.iiv. 
•'  iTNi  iri,.viix,  t  Jniii.;  Sfliiii.   .\t..   IV,  (.  4.     I'miii 

iiiii  i|iiilf  circnliir. 
•I  ixii:iiMi.iiii'«,  •Jrmi.;  ( iiiU'cir  Mrxicn.     Scliin.  .\t., 

14.  I'.  ;!<!. 
"  Kic  i,K>l  AM'».  <  ii-fv.;  ('Mni|i.   I'.Mv.     Scliiii.   .\l.,    H'l. 

f.  It. 
'<  iii.MAiKiiNAirx,  A.  S..  .Slim    Al..  H>.  T.  7.     Cinii.. 

r.;iv. 
«•  (  i!Kiu;i;.-nii  Ml'-,  tlifv.;  Si4iiii.  .\t.,  14,  1'.  'is  ;  "):i. 

1.  1>. 
l{.\i,i-ii.  \V.  S.,  .S.   |{.   I),  30.  f.  -J.'.?;  Si'liin.   At.. 

H,  f,  1    I.     (Iitir  of  Mfxicii.  <'iiiii|..  Hay. 
"  HOTI'I.A.  ti  11111. ;  Sihiii.  .\l.,  1  I.  I'.  I".     <'itii»l>.    Hay. 

"  S,\i  KiMfiMMi,  liriiiiii.:   Si'litii.  Ai.,  "i"-'.  i.<i;    'i:!,    I'. 

:;.  4. 
"  i'iiAi,vN(iMM,  A.  S.  Scliiii.  Al..  14,  1.  II.  I-J.     Ciiniii. 

Hii.x . 
"  ^iMii.ASs,  tircu.:  'I'.   M-  "^v    ^^''~-  !'•  ''-   '-  '•   "■ 

.S4mi.  Al.,  17,  f.  l-J  14. 


I'l.it..  I.XWiIi 


f.   41. 


I 


I 


! 


I 


M     Vi 


M 


U 


1 


Is  ' 


'\i 


1  !: 


i 


PI. ATM  J.XXXIV. 


F"iBiu>'ti  ina(tiiit1fi!  "KKt  (lliiiiielcri. 


Kit.    1.  Hai'iiiii(ii>[S(1!s  Makyi,andk'A,  TC— .l/iV)<w;()/»s.  Mav,  1889. 

•'      2.  "  Chkistiami,  <ius(()i>;ii('. — ^/wovoopB,  May,  1889. 

Kits,  :>,  4.  "  I-'kukjkhii,  T.  <'.  —  Mivrimr.njw,  Mhv,  1.ss!>. 

These  three  desi'iihed  species  niiist  he  rc<liict'i|  to  ;i  single  (inc.  The  impressiiin 
conveyed  hy  the  e.xaininalion  nl'  a  phiptdfjiMph  nf  //.  Marylmnlim,  is  that  of  two 
(iirterent  diatoms  accidentally  wedded  tonelhcr  ;  the  niarkiii<;s  of  Mll-osiRA  can 
he  plaiidy  made  out  when  those  of  Hli.'ipsodisciis  are  out  ol'  locus;  and  K.  ("hris- 
tiaiiii  \n  simply  Marylandica  without  the  envelopinu'  Mii.osira;  or  more  cor- 
rwt\y,  Maryhindira  i\\v\  ('hrixtidnii  U»\^*^i\  in  a  Milosira.  K.  Kel)ij;erii  is  simply 
Chriatianii  with  its  marginal  rim  hrokcii  away.  C  M.  Vorce,  Cleveland,  O. —  The 
Microscope,  May,  lS8'.t. 

Fi^.   5.  STKPHANoi'YXifi  si'JNiicissiMA,  (iniii.;  Schm.  At.,   \'l'^,  f.   18.     St. 

Monica. 

"        t).  PsKl  iJOAULlSt'lIS  RADIATIIS    Scluil.   .\t.,  'A'2,  I.  "JfS. 

7.  ODoNToDiscL'ssrifi'ii.is.drnn.     Do  not  see  why  this  shoiiirli)e  called 

C)donlodiscns  without  any  eviilence  of  teeth, 
(Odontos.) 

V'iilf>.  8,  9.        S'l  Kj'ii  ANoi'V.xis  sui'KiMiA,  Sclini.  At.,  12;'",  I'.  4,  •').     I -artje and  small 

torms. 

Fig.    10.  .\ANriinii'.si.s  u.MBit.NATUs,  ( irev.,  T.  M.  S.,  18t)0,  p.  2,  1,  f.  •"). 


■<Af 


\^U^L^'^Olc 


■(  j^ 


I'hiv   lAXXiV 


ii 


, 


I'LATE  liXXXV. 

l-'innn's  irim.'iiifli'(l  VHi  illiiiiiflerj'. 


F'ik'.    I. 

Ml 

•'      8. 


s. 
9. 
10. 

11 
12. 

IS. 

14. 

15. 

IH. 

17. 

IS. 

19. 

20, 


AcTiNOCYcl.irs  KM.ii'TK  I's,  (JiMii.;  V.  H.,  l-.'6,  f.  10.     tlichmond.Va. 
.\(  iiNoi'TYcni's  soi.ius.  A.S..  Sclmi.  At.,  1,  t'.  11. 

'<  i'K.ucii:if,  A.  S.  Scliiii.  At.,   UtU,  I'.  5.     Maryituitl 

deposit. 
"  AitKoi.Ail's,  Schip    At.,  1,  f.  (1.     Calitornia. 

"  AMiU.Ydt  Kitos,  rrriccraiiiirii  amlilyi'riTos,     Klirb  ) 

Scliiii.  At..  I,  I'.  •_'•')       Uii'liiii(iii(i.  Va. 
"  Nii'iDUS,  Scliiii.  At.,  1,  r.  7.     Mexicii. 

"  snn-ii.i^i,  <ii'ci;.,  funna  iiiMJur;  X.  H.,  I'io,  f.  11. 

'<  iMKiiTis,  (iniii.;  Si.  Mdiiica      V.  11.,  1"25,  f.  4. 

Ai  TiN()(YCi,i:s  Ehhkn(  Ki!(;ii,  i\air-.;  St.  MiMiica.     V.  K.,  TJ'),  f.  1. 
A<'TiN()i'TY(;nr.-»  i,Ai;vi(iA  Its,  (iniii.;   lU'pos.  Moiilery,  Chil.     \'.  H., 
l-J-2,  1.  7. 
TRKioNtis,  A.  S,  Sclmi.  At.,  1,  f.  •-•!.     <'amp.  Bay. 
.\(TIN(mY(  i.i's  EiiUKNiii:i!(iii    vav.  iiitermeilia,  (iriin.;   V.  11.,   124, 
t".  •">.      I)('|Mis.   St.  Monica. 
"  Rai.ksm  var.  Monica,  (inin.  Cal.     V.   11.,   124,  f.  3. 

Pmictac  lit"  liordcr  arc  (itiincunx. 
"  AiJKNUs,  var.  Caliruniica.  (inm.;  St.  Monica.    V.  H., 

12."),  f.  10. 
Aci'l.Vdl'l'VfUUS  viFi.iiAiiis.  var.   \iisiinica,  (Inin.;   Hiclimond,   Va. 
V.  II.  121,  r.  7. 
(W-ABHA'rrs,  var.   Anaeloiiiiii,  (inin.;  St.  Monica, 
(al.     V.  H.,  121),  f.  9. 
"  i.i.AHRATO,  var.  .Monlercyi.  (inin.;   Depos,  Mon- 

tcicv.     V.  H.,  120,  r.  7. 
"  si'iNiiKKdis,    (vulgaris  var.)   (ham:    St.  Monica. 

V.  H.,  121,  r.T,,  (i. 
"  «r,AHi{A'n;s,  var.    incina,  (trim.;  Si.   Monica.     V. 

H.  120,  I".  8. 
"  VULGARIS,  var.  Monicac,  limn.;  Cal.     V.  H.  121, 

f.  9. 


i'l  .•■•liXXW 


I 


I 


'I 


PLATK  LXXXVI. 

Kiuurev  iiiiiuiiilit-il  .Vki  illiiuii'l('i'!«. 


FiK.    1. 


2 
8 

If 

4 

l( 

A 

"  «. 

"  7. 

"  8. 

"  9, 


C<)s<iNoi)i.s(us  BiAN'iiUi.A  ITS,  A.  S.,  Sclmi.  Ai.,  K:!,  I'.   18.     Nottinjt- 
Imiiii,  M(I. 
AKMATis.  ( iicv.;  Scliiii.    \  I.,  r);,  f  4.    Kicliiiiond,  Va. 

('KAsFii)Ol>is(i!s  cosciNuiHscis,  (iiiMi. ;   Sclmi.    At.,  (id,  f.  4.      Mon- 
te rt' v. 
"  (K  riJs-lKlMls,  Khrl).;  Sclmi.  At.,  (>li,  f.  8-7. 

C'KAsi'KiM)ins(  r.-;  KHoMBi' II-.  ( iiUK. :  s.lirii.  At..  tt6,  t'.  18.  Mou- 
lirey.  '"More  likely  a  viilve  of  Hiil<liil|))iia 
tliim  M  < 'r;is|n'(i()ilisciis,''  H.  L.  S. 

C(>s<'iN<)i)isciis  H^;•l'^;uol'ol^•^,  viir.  (Inm  ;  .VlDnit'iey.  Soiini.  At.. 
«1,  r.  •■),  i. 

Crasi'mmhiiscus  Ei.h/iAN.s  Kliili.;  .Schiii.  \\.,  (id,  r.  I.     Nottingham, 
M.I. 
"  CdficuNomstijs,   Khrli.;  Schm.   At.,  tki,  f.  8.     Not- 

lini;iiiirn.  .VI<I. 

C<)B(nm)Dii!M'Os  APici  LATi'w,  vHf.  Kliili. ;  Schiii.  At.,  Ch,  i.  7-9. 
KicliKiond,  \n. 


I'la'riAX.W 


f  fl 


-<X:iiiili^'^' 


;1 


FT.ATK   I.XXXVn. 


h'il.'iiics  inauiiilliil   'iiH'  (li;iiiii'lci''*. 


Fig.    I.  CosciNoKisc'ls  loMiKAi.is,  F5;iil.;  Sill.  J.,  July  1  Soli,  p.  8  ;  Sclmi    At., 

(5:{,  r.  1 1 . 

"       -'.  '•  Cka.ssis.  Itnii.;   Sill..).  KS.")fi,  p   4:   Si-lnu.  At.,  (il.   f. 

19. 
"       •>■  "  i>iuKAMA.  Scliiii.  .\i.,  ti4,  t'.  J.  =  ('.  j;ii{iis,  Klirl). 

4.  '•  AsTKHOMi'iiAi.f.s  Klirli.;  witii  lartrc  ci'lls.     Si.Mdii- 

ifu.     Scliiii.  At.,  (>'A,  (.  !•_'. 
*'  Koiiu.-^Tis,  (itvv.;  St,   \[niiicii.     Sclmi,   At..  (>•_',   f.  ti. 

"  (KNTHAl.i.s.  Khrlp.;  Cal.     S.'lmi.  At ,  (>:!,  I'.  1  ;   (10, 1',  ll'. 

"  SI  si-Kcrrs,  .Jimisfli.    Cai.    .Si'lim.  At.,  •')'.»,  i.  l2.     'IMii- 

inesiu's  only  slightly  smaller  at  inar^;iii  than   in 
center. 
"  <  >Mi>HAi,ANTiirs,  Khrli.    Margin  arelieil.    Monterey. 

.Si'hm.  At.  (i;!,  r.  2. 
'.'.  "  I'KKKoHATU.-i,     Kliri).;     Kieiiinond,"   Va.      Series    of 

pnncta  radiating;  Sehm.  .*Vt.,  (i4,  f.  12. 

10.  "  i.iNKATis,  Khrli,  Sehin.  At.,  .")9,  f.  -26. 

11.  '  "  K<)HtsTf.s,(Mev.;  St.  Monica.     Smaller  form  nflig.  ."i. 

Sehm.  At  ,  &2,  f.  .'>. 


"      .5. 
"      H. 

'•      7. 


"      8. 


ti  ! 

\ 

J- 


I'l.^i,.  I,\XX\'il 


i 


a 


i 


if 


•    .'^   CO   ^l,-",   o   " 


;  Li 


I'LATK   LNNWIII. 

f'ik.'111'rs  iiiiiiiiiilli'il   ")'Ki  iliMini'lHr- 


r 


FlL'.     1. 


X 


5. 
6. 

7. 
8. 


10. 
11. 


Aii,A((>iiiS(  L's  ('iirx,  Klirli.;  IticlinKiiid.  \'i\.  Areolation  (felliilcs) 
hixaijonai     Srliiii.  .\t.,  1-1,  ♦'.  1. 

•'  KirroNii,  .Anmli.     St.   Krniiciscd.     Sclim.   At..  ;<•', 

r.  ;!  r=  .\.  KlirenlxTiiii,  J!mi:^(!li.     MunH-rvv. 

••'  Till  Mil,  A.  .•<.     Tlif  cclliili's  ;irc  nut  siiiijily  round 

ami  smciotli;  tiii'  diMloin  is  cuiniiosed  (tf  two 
plates,  the  iipiifr  oii«"  is  ptTloratt'd  and  the 
oilier  dnttnl  ail  over  willi  j;raiiiiles.  .S|.  Mon- 
ira.     Scliiii.    \l.,  lOS,  C  S. 

"  i)UhXji)M:s,    I'ailcv.      .Vrfohition   more  or  lesK   liex- 

auonai. 

(AMI-llKNlA,  Sclilil.   .\,l.,  lU,  1".    1.  5. 

()RK(i(iNl's,  siiiailt'i-  var.  of  tiu;.  4. 

<IH(I'M1>.\I1  -,  A.  S.,  .Sciim.  At.,  :$•"•,  I".  .").  Calirornia. 

I'lfuuAHii.i.-,  .\.  .'^..  Sctiiii.  At.,  :'.t),  t'.  lo.  .MoiUfrey. 
(Vllnlcs  airaiiK't'd  niori' or  iesN  in  ciiclps  around 
the  middle.     Nearly  al<in  to  A.  Hrownii. 

sohl.lTiANis,  N(!r. ;  Sehm.  At.,  •.VA,  (.  Ml.  Notting- 
ham, Md.  .■^inl'ace  dotted  with  very  small 
priekh's. 

HkoWNKI,  Norm.  Monterey.  Schm.  At.,  lOo,  I',  ti ; 
hardly  separable  from  .4.  prohahilis,  tij;.  H. 

KiNKKRi,  A.  S.,  Sehm.  At.,  10«,  f.  45.  St.  Monica. 
I'ossihlv  a  var.  of  A.  erux. 


u 
(I 


t'--? 


I'hii.'l.NXXM'l. 


.r<-^j^s^^m 


J 


: 


'-^■■^^f^' 


I 


PI-ATi;  TAX XIX. 

I'liriin'M  iiiiiiiiilllcil  :0i  clliiiiii'tt'rs. 


KiK.    1. 


ill 


A. 

t;. 


Figs. 

H,  ( 1 1 ) 

Fig. 

9. 

ti 

10. 

it 

11. 

FiK8 

12,  13. 

Fig. 

14. 

A«T!.isciTs  sciTi.i'Trs,  Riills.:   I'ril.,  p.  si.'),  (>,  f.  :5;  Sclmi.  \\.,:M\  f.  H  ; 
V.  II.,  107,  I'.  \,± 
M,u;itAKANi's,«rev.;  T.  M.  S.,  1H«:5,  p.  .'.l,  :i,  f.  IM  ;  S.lu,.. 

.\t.,  :!1,  f.  5. 
KAi.iAiiis,  Hsiil.;  T.  M.  S.,  I:W.,  p.  49,  S.  f.  14. 
"         I'l'.RiviANl's,  (irev.;  T.  M.  S.,  lS(i2,  p.  25,  2,  f.  «;  Sciiin. 

A(.,  :V.',  f.  2".t.     ('ill. 
''         SciiMiDTii,  ( Jnm.;  Caiiip.  Hsiv.     Sclim.  .\t.,  ISO,  f.  7. 

.AKLATis,  Bail..  N.  Sp ,  p.  fi,  f  :i  4;  Schni.  At.,  32.  f.  14, 

1.").     Mont. 
"         HAcKMosrs,  RkK.;  Scl.ni.  At.,  :«),  f.  12,  l:!. 
"         coNKi.iMiNS,  (iniu.;  Sflim.  .\t..  Ml,  I'.  H). 
"         ('AKliAii's,  V'"".  Bnilev  ;  Camp.  Hay     Sclim.  At., ;>2,  f.  17. 
"  •'  var.  lalccostata,  Sclim.  At.,  32,  f.  18.     Ki^.  t<Ki 

roiinil,  ()iii{lit  to  li«'  iimrc  oval. 
"        roNFLUKNS,  vide  tig.  S. 
''         MiKABiMs,  a  small  and  a   laru'er  form,  after  Hclim.  At., 

s»,  f.  in-13. 
"        Stokckharutii,  .Janisfli;  Hciim.  At.,  30,  f.  11.    Same  as 
A.  raceinosuis,  vide  tig.  7. 


I   ■!> 


I'l..t,  l.XXXIX. 


M'lllll. 

■'oliin. 
.  I'.  14, 


,  r.  17. 

i^.  t(K> 


.  At., 


luie  as 


ti 


(     I 


"      2. 


KiKs.  7.  S. 

FiK.   H. 
"       10. 

"       11. 

"     lis. 


y\\ti\ri-  iiiiiuiillli'il    '"'  illiiiui'liTH. 


('.wciNiiDisciiH  KXiAVAi'is,  (licv.;   I'rit,.  (•.  S-.'^t,  H,  f.  '2i\  \     Sflnii. 

At.,  «.'),  I'.  I .      N.irtli  ( 'nnilinii,  New  .leiMey,  etc. 
'.'  sh:('KI<nkni)I'x  (Si't'cmcinln-i),  A.  S,  Srlii?i.  At.,  114, 

r.  1.     Marvliin<l. 
«•  KM.iAci's,   Kliil..   Al.h.,  lM;t'.t,  p.  IIH;   Mik.:V,',  M,  f, 

17;  :•;.■)  A,  17,  f.  •;;  Sill.-I.,  I«4-J,  p.  Itr,. -J,  f.  I4: 

S.  H,  !).,  :;,  f.  57  ;  S.lim.  .Vl..  «<•,  f.  o,  !»,  »i.  7,  10. 
•«  W'>oi»WAiti)i\.    KiiUri'^.       D.Mil.lfiill.v    this   spwiex 

,mii  (loiilitfiilly   N.  Am.'i'.,  S<'l.i.i.   Ai.,  (il.f.  J; 

115,  r.  '1. 
«  Ki,oiui.t;i,is,  A.  S.,  Sclim.  At.,   11:!.  I'.  Id.     St.  M<.- 

nicii.        Kiiys    n  a    ^traiKlit,    Init    iimn'    or    Icsw 

oiirvi'tl,    in    cniiienlrii'    iiml  ecfenlrif   ^crit'.-i  of 

celliilfs.     Ilnnily  f<»'p:iiiiliic  from  (;.  KiuliiiliiH. 
«'  i-Kl-rnri'M,  llnm.     ( '.  liiifatiis,  v;tr.,  \'.  II.,  KM,  I'.  5. 

('alili>nii:i. 
"  vr.i.ATi;.-.,  Sihiii.  At.,  n-2,  I'  lti-1-Jiiliices  tliene  douht- 

fully  to  C.  volatile     ViiKinia.     Miiv  be  varieties 

of  ('.   Marniiiatiis. 
"  iMiMiKs^t'H,    <lniii.      Si.    .Monica.       Center    of    cell 

soniewliat  (le|)re.sse(l. 
M  HxcKNililcis,  Klirl>.     California.     Sclim.  .\t.,  58,  f. 

4(».     i'itriire  rather  liiieiy  lined.     .Mijflit  be  more 

in  liexuKonal  cells. 
«  <ruvKLATts,   so    named    provisionally    Ity    \.   S; 

8chm.  At.,  <v),  f,  ».     Monterey. 
»  iiKToKoi'oitiis,  var.  (Jriin.,  Monterey:   Schni.    At., 

.;i,f.  1,.-.. 


:  i 


1 1-^ 

lilf 


I'lii.Xr- 


;     Scliin. 

<i'v,  etc. 

\t.,  114. 

;.  ;;:•,  'A,  r. 

).  -J,  r.  14: 

!t,  •(,  7,  10. 

is    specit'x 

,   til,  r.  1'; 

St.  Me- 
re  or    li'sH 
•    M(Tit'.>i   111' 
KiiiliiitiiH. 
,,  i:ii,  f.  T).' 

lu'se  iii)iiiit- 
)e  viirieties 

IT   of    cell 

I.  .\t.,  .')8,  f. 
(lit  be  niort^ 

l)v    A.    S; 

Si4iiii.   .Vt., 


HI 


'  h 


PLATE  XCI. 

cMkitps  matfiniMed  r*X)  dliimeters. 


Fie;.    1.  Arachnoidisoi's  Ehkknukugii,  Bail.,  Wilkes  Ex.,  p.  174,  9,  f. 

.9;  H.  H.  D.,  31,  f.  'iiiS;  Schin.  .\t.,  68,  f.  1; 
73,  f.  1. 

'       2.  "  EHRExnKKfiii,  viir.  Montereyana,  (Jrnn.;  Sclim. 

Ai.,  (W,  f.  2. 

"      3.  "  EiiRKNnKRdii,   var    Californiea,  A.  S.,  Sclini. 

At.,  73,  f.  1. 

"      4.  "  EHKKNBERfiii,  var.  Californica,  WeissH  ;  Schm. 

At.  fi-.  3.   . 

"      ').  "  (iREViLLEANi'a,  Hardiii. ;  Scliin.  At,  CS,  f.  "). 

Monterey. 

"      0.  "  Indici-s,  Ehrb.,  var. ;  Schni.  At.,  73,  f.  2;  Mik  , 

3(i,  f.  •_>4. 
Figs.  7,(  10, 1  n.  "  I.NDicus,  vars. ;  Sclim.  At.,  (58,  f.  6,  9,  10.    Cen- 

ter   ie.sH  filled  ;  hardly  a  rosette  as  shown 
in  tl<;s.  10  and  11. 
8,9.  '  OKNATU.",  var.  Montereyana  ;  A.  S.,  Solim.  At., 

73,  t'.,  7,  9.  Kosette  does  not  show  hiank 
center  large  enough  in  either  figure;  it 
IS  (juite  apparent  on  the  valve,  H.li.  S.  MSS. 


'  iff 


\( 


Pr.ATK  X(  II. 

I'isfiires  inugiiUlfd  .VKl  iliHiin'tf'rs. 


i 


I 


i 


W 


m 


KIk.    1-  A<  TiMU'TYc  HI  -  HEi,i<ji-Ki,TA.  (Jninow,  lower  plate;  Sell m.  At.,  109, 

f.  2:  \'.  H.,  l'2'.i,  I'.  :>.     Miirvliind.     Kilxe-wUe 

the  disc  is  undulating. 
'■      •_'.  "  Pi-iT/.K-Ri,  Grlind.;  Schm.  At,  29.  f.  1.     Cal. 

(im.  KNiil.FKl,    .\     S.;    St.   Monica    and    Monterey. 

Schni.  At.,  1,  I'.  22:  liUi,  f.  4. 
rNDULATl'M',  Khrl).;   Monterey.     Si-hin.  At .  I,  f.  li  ; 

V.  H.  122,  f.  :!. 
K.vt'Ki.i.KNP,  S<l)iiin.,  1H()7,  i>.  64;  Sclun.  .At.,  1,1".  14. 
sHJ.KNI>K.ss.  Sehiid.;   V.  H.,  119,  f.  1,  2,  4. 

"  var.    erucil'era;    Cal.  St.  Mi>ni<a.     \'. 

II..  12(1,  f.  2. 
si'i,endi;ns,  var.  Calil'ornica  ;  Sclnu.  .At.,  1,  f.  2ti; 

V.  II.,  120.  f.  1. 
sfi.ENDKNS,  var.  Halionyx;  V.  H.,  119,  f.  8. 
rHi.WHl'i.VS.    A.    S. ;     I'iseataway,   Me.     FrolmMv 

Trie.  Matvlandiciiuj ;  Sehni.  .At..  I,  t'.  2G 


Kits. 

:i,  (7l 

ii 

i( 

4,  ">,  (.;. 

t( 

FiK. 

s. 

(( 

•  i 

9. 

II 

•• 

10. 

II 

11. 

12. 
IJ. 


i'h.tr    W 


i! 


H 


I'LATK  XCITT. 

KiKnri-s  iiuiguillcd  .'iiM*  dlinnoUTs. 


Fig.   1. 
Figs.  4,  5,  H. 

ASTKROI. 

1' 

Fig.   2. 

"      3. 

tl 

u 

"     7. 

!• 

Figs.  8,  9. 

*. 

AsTKROi.AMPRA  Marylandica,  Elirb. 


Fig.   10. 


11. 


varieties,  M.  J.,  1860,  p.  94.  %  f. 

3;  T.  M.  H.,  1860,  p.  47.  2,  f.  13,  14;  p.  108,  3, 

f.  1-4;  1862,  p.  44,  7,  f.  1-3.^ 
VARIABILIS,  Grev,;  T.  M.  S.,  1860,  p.  Ill,  3,  f.  6,  8. 
Brookii,  Bail.;  Sill.  J.,  July,  1856,  p.  2,  1,  f.  1  ; 

Prit.,  837,  5,  f.  79  ;  Schm.  At.,  38,  f.  9,  21,  23. 
Brebissoniana,  Grev.;  T.  M.  S..  1860,  p.  114,  3,  f. 

9.     Monterey. 
Dabwinii,  Grev.";  T.  M.S.,  1860,  p.  116,  4,  f.   12, 

13.     Monterey. 
ROTULA,  (^rev.;   T.    M.   S.,  1860,  p.    120,  3,  f.  n. 

Monterey. 
ELEGANK,  Grev.;  M.  J.,  1859,  p.  161,  1,  f.  6;  T.  M. 

S.,  1860,  p.  118,4,  f.  16. 


xciii. 


108,  8, 

f.  t),  8. 
I,  f.  1  ; 
21,  23. 
14,  8,  f. 

.  f.   12, 

3,  f.  o. 

;  T.  M. 


^^i 


If 


!■• 


;  ' 


I  « 


'   I 


u 


1^^ ' 


I 


fi 


!  ■  I 


1  . 


il' 


iAf 


Figs.  8,  9. 


Fig.  10. 

"  11. 

"  12. 

"  13. 

"  14. 

15. 

"  Ifi. 

"  17. 

"  18. 


PLATE  XCrV. 


Klcnrps  M)Hi:iiii1<Ml  vki  (liiiinctcrs. 


11 

19. 

u 

20. 

Kiu'S 

it 

21, 
22. 
23. 

26 

24. 

25. 

« 

M 


Fig.    1.  CosciNODiscus  KLKtiANH,  (iri'v.,  T.  M.  S..  lS«b.  p    ii,  1,  t.  fi;  Sclim. 

\t.,   58,  f.  7.     l*ist:ittiiway.  Me. 
"      2.  "  sYMMETKicis,  (irev.,  T.  M.  S.,  l.s«l,  p  fiS,  H,  (.  2; 

Sriini.  At.,  57,  I".  25-27.  .\m>lati()n,   lii'.xagoniil. 
"      3.  "  (lONCAVT's,  Ehrl).,  Mik.,  21,  f.  4;   IS,  f   ;W ;  Sciini. 

At.   5!t,  f.  Hi.     Monterey. 
Figs.  4,  5.  •'  CorcoNKiKOKMis,  .\.  S.     Monterev.     Siliiii.  .\t..  58, 

f.  25,  2t). 
Fig.   6.  "  HADioLATiJs,  Kliil..  Miix.,  31»,  ;;,  f.  18;  22,  f.  4;   18,  f. 

36;   K.  B.,  2it,  f.9i  ;  Sclmi.  M.,  60,  (.  11.     Cel- 

lilies  rather  ♦.()()  irregular  ami  too  ra(liate,H.  L.  S. 

'■      7.  "  NODUIJFKR,  .li.n.,  or  lietter  I'.  liADioLUS   »ar.  luulii- 

liter.     S.iim.  .\l.,  59,  f.  20.     (.'amp.  Hay,  (^al. 
SUBTILI^    Elirl).     Kicliriioiul,    \iryinia.     57,    f.    H, 
and    15,   16   vars.     Tlu'    latu-r    with    areolalion 
Komewliat  larj^er. 
NiTiuil-U!?,  (irun.   Camp.  Bay'.    Sehni.  At.,  58,  f.  20. 
KADiOLUs,  (nun.     Mo!iterey.     V   H.,  132,  f.  7. 
CENTKAMf,  Cirun. ;  not  threiiherg'.s  figure,  whicii  is 
very  indetinite.     Hchni.  At.,  60,  f.  12. 
*'  AficuLATiis,  (=  perforatns)  Ehrh. ;  Sehni.   .\t.,  64, 

f.  5,  6.     Kiihmond,  Va. 
.\CTIN0CYCLUS  cURVATtiJ.iJK,  Janisch  ;  Sehni.  At.,  57,  t'.  31. 
CowjiNODiscr.s,  NiTtui'i.i'f,  (iriiii.  (amp.  Bay.    Sclim.  .\t ,  58,  f.  21. 
"  MARCilNATO-l.lNKATUSi,   A.  S.,    Schni.    .\t.,  59,   f.  33. 

Camp.  Kank. 
ROTiiLA,  Uninow;  Sehm.  .-Vl.,  57,  f.  6,  7;  Camp.  Bay. 
Lewisianlh,  (Jrev.;  Hchm.  .\t.,  66,  I'.  12;  T.  M.  iS., 
1866,    p.    78,    !S,  f.   8-10.     Rappahannock,   Va. 
According  to  Grevill'j  tiie  uranules  have  a  dis- 
tinct radiate  character. 
HTKLLlgKR,  Griin.   Camp.  Bay.    .Schm.  .\t.,  58,  f.  10. 
MINOR,  Ehrh.  Ahh.,  1839,  p.  147,  3,  f.  2;  K.  B  ,  1, 

f.  12   13;   Schm.  .-it.,  58,  1.  .39,40 
.MAiiGiNiiLATi's,  var.  ciifvato-Htriata  ;   V.  H.  94,  (.  32. 
NiTiuuLUH,  Greg.   Canjp.  Bay.    Schm.  At.,  58,  f.  17. 

var.,  Schm.  At.,  58,  f.  19 
NoTTINaH.^.MKNSI,s,  Griin.  Maryland,  V.  H.,  129, f.  2. 
MARGlNtiLATi'.s,  var.  Campeachiana,  (irun.;  V    H., 
94,  f.  33. 
27.  '*  .MABOINULATU8,    Gfuu.;    var.    Stellulifera,    Grun. 

Camp.  Bay.    V.  H.,  94,  f.  34. 


« 


(4 
II 


1 

I 


III  I 


I 


It'll,.  \( 'A 


; 


■  I 


r  S 


I  > 


.     ■* 


PLATK  XCV. 

Kitiiifs  miiunltlril  ."i<KUlliiiH('tcr> 


Fie.    14.         HinnOLPHiA  TlHMKYii,  l.iiil.     (  ainp.  Uny.     Schm   .M..  1 19,  f.  I- 8  : 

T.  M.  S.,   IS.V.),  ]>.  s.   1,  I    1,'_>:  V.  H.,  »H,  f.  -J,  3. 

Th»'  itraiinlfs  i>f'  central  |mrt  of  tin.    4.  arrafged 

irt<lially. 
FiK!^.  S  fi.  "  svMoKBHi'i.ARiN,  (irun.:  \'.  H.,  UtO,  f.  l'>,  1«.     Not- 

tintiliaiii,  Marylanri. 
Fig.    7(101.  "  KMoMUVs,  [K\\rh.).  W.  Simth.  {Xy(/ncfri>n  Klirb.,  Dev- 

licefla  F.hrb.,  Odnntdla,  Kuetz). 
Fitfs.  S,  11  -l.S.  "  Koi'KRiANA,  (irev..  V.  H.,  99,  f    4-6;  M.  J..  IH59,  p. 

163,  7,  f.  11-18.     The  >;raniile(*  are  quincunx,  on 

all  the  hnops. 
Kig.  9.  "  MoRiUBNsis,  ^ Bailey ),  Grun.     Zyyoceron,  Raiky,  Bid- 

dviphia,  Bailey  I .   W.Smith.     Sill.  J.,  1845,  p.  336. 

4,  f.  2,  4;  V.  H.,  101,  f.  4-6. 


'!  ■■    5 


i  !■ 


Itt 
ill 

m 


i 


I'l.it.   XC\'. 


I! 


II  i 


I,  i{  t 


Figs.  1,  2.  BiDDULPHiA  pin,ciiKLi-A,  Qniy.;    A    front   and    a   lateral    view. 

(  Denticella  Riddxdphia,  Ehrb.;  liiddiUphla  Locu- 
laris,   Kiitz.)     t'amp.  Bank,  V.    H.,   97,   f.  1  ; 
Schm.  At.,  118,  f.  2(5-29. 
'•  PULCHKLLA,  (»ray.;  a  lateral  view. 

"  KmvAHDsii,  (front  Jiml  lateral  view);  V   H.,  100,  f. 

9.  10.     Only  a  prickly  form  of  B.  Roperiana, 
Orev.;  M.  J.,  1859,  p."l6:j,  7,  f.  11-13. 
LONoicRi  CIS,  Grev.;  M.  J.,  1859,  p.  163,  7,  f.  10. 
"  SETiounosA,  Grun.;  Virstinia.     V.  H.,  101,  f.  7,  8. 

1.  "  AURiTA,  Lyngl..;  V.  H.,  98,  f.  4-9;  8.  B    D.,  45,  f. 

319. 
"  LONOispiNA,  Griin.;  St.  Monica.     V.  H.,  102,  f.  6. 

KETtciTLATA,  V.  H.,  102,  f.  1,  2;  Roper,  T.  M.  8., 
1859,  p.  14,  2,  f.  13, 17  ;  Schm.  At.,  78,  f.  21-23  ; 
84,  f.  9-lG ;  85,  f.  8. 


Fig. 

Fins. 


Fig. 
Figs. 


Fig. 
FigH, 


3. 
4,5. 


0. 

7.  S. 
9,  10,  1 

12. 

13,  14. 


'l\: 


I'li.i.'Xc'v; 


p(7^^,,ii>s^ 


■m 


^J3;V/ 


<<>^7^f^ 


^1 


' 


(•i 


l 


I'   I 


'Ml 


;  '  * 


KiKs.  I ,  "J.  1 5, 


5,4. 


Fiy.  •:»  (111. 


ti. 

7. 

S  (10) 


II. 


(■'luiiri'^  itiiivdililril  Vm  illiiiiii'li'r> 


\\.)    Hiui.ri.i'MiA  i.vKvi>,  Klirl..  Mik..  :?:{,  1.^,  I.  Ui;  T.  M.  .s.,  IHr,9, 
|..  IK.  'J.  f.  --M -•-•';,  Sill.  ,1..  1842,  -1,  f..H.     A  lew 

i,f    til Hiiy    \;iiiflii's    witlejy    liiNtril'iitetl 

friMiiii'iii  iihiii;  the  .*e«  Ixmril.  Imt  iilsu  inlHiid. 
sail  iiinrshis  i.r  Kancas,  I'tMli,  ftc 

"  irR(Hi>r>',    W.    S.;    ('enitauhi'*;    (Idonldlu,   Ehb 

Spines  of  llie  valves*  wavy,  ii'-l  liiiid.  \'.  II.. 
104,  1.  I,  -2;  S.  r..  !».,  (i'2,  f.  ^^M\  T.  M.  S,. 
iH5i<,  |..  17.  -J,  I".  2:!, 

"  woi.YMt)Kl'Hi>   iCeralaiihiH),   \'.   H.,   104.   f-   4,  "5 

Odoniella.  i>ulyiii(>rphns,  Khrb.  I'.idiliilpliia 
laevis,  W.  S. 

•'  .JUIINHDNIAM  s,  Viir.  (il'CV.;   Sclllll.  .\t.,  II'),  I'.  16. 

"  irKoiiHN   Klirli.,  S.'Imi.   At.,  I  Id,  f. -J.      r/V/e  »)«. 

W,  4,  aliKve. 

"  oVAMS,  CriilaiiJiis,  \.  S.,  S(4iiii.  .\t..  115,  IV  7,  and 

Wn,  f.  .0.  Tliis  (liiiiiiin  is  nui  only  finely  ilotled 
but  am.lateil  like  a  (  osciiiodisius. 

'*  ('AMF(iKXtc!iT»  {Ceralaiilw),  \.  S. 

"  Vide  fig.  '). 


PLATE  XCVIII. 

''ijfiircs  iiiiitt'iiilii'd  ."dKi  (liimictci'!-. 


Kiiis.  1,  •_>, :'.. 


I:  '£  < 


Kitf. 

4. 

Kiss. 

.-.,  tl. 

FiKs. 

7,  8,  9. 

FiK. 

!(►. 

FiKH. 

11,12. 

i( 

i;^,  14. 

(( 

15,  !(!, 

•' 

18,  19. 

HiDDrijMiiA    Hah, KYI,  VV.  S.;  S.  H.  I).,  4.'),  f.  IVJli;  (W,  f.  .".-i-i:  T. 

iM.  .S.,   lS.-)9,  p.   12,  1,  f.  09;   V.  U,,  101,  f.  4,  ."). 

Xoarly  akin  to  B.  iiiobiliensis. 

*'  VVooi^MANii,  Kain  iind  Sdiiiltze;  Ilnll.  Toirey  Hot. 

("liil),  March.  '89.  Atlantic  Ciiy,  Artesian  well. 

"  DEciPiKXs,   (irnn.;    V,    H.,  100,  f.  3,  4.     Atlantic 

Citv. 
"  Ki,K(tANTi:i,A,  var.  of  Tuomeyii,  (irev.;  8chm.  At., 

119,  I'.  9,  10,  11. 

"  CooKiANA,  Kain  lind  .Schiiltze.     .Vitesian  well,  At- 

■  iaiitic.ily;  Bull.  Torrey  Bot.  Cliil),  March  1889. 

Var.  of  B.  Ornata,  i  ast.,  1887,  p.  10.%  2.'{,  f.  9. 

TKNUis,  Bail.,  H.  J.  X.  H.,  vol.  vii,  I  p.  f.  25.     i'rol)- 

alily  identical  with  H.  Bailey i.      Vide  fip.s.,  1-3. 

Tiu.vAritiA,  Bail.;  B.  J.  N.  H.,  p.  3:?8,  1,  f.  ;{4.  3-5. 

A  variety  of  Bid.  Baileyi. 
PoKi'KiA  .iUADRATA,  (Irev.  T.  M.  S.,  18(1;?,  p.  6.5, 
(),  f.  20;  V.  H.,  92,  l)is  f.  15. 
"  BRi'rTOMA>.A,  Kain  and  Scluiltze,  Bull.  Torrey  Bot. 

Cluh.,  Aii^.   1889,  p.  20S,  92,  f.  1,  a.  1..  c.     Arte- 
sian well,  .Atlantic  City. 


V   .1 


'!,-ii.'  XCA'iil. 


PLATE  XCIX. 

Klanrpn  inii«nlfie(1  5110  dItiiTiPtei's. 


.»  ii; 


:i .:  i 


Figs.  1.  2.      Trk.kkatiiim  favus,  Khrl..  Mik.,  13,  f.   17;  K.  R.,  18,  f.  11  ;  S.  R. 

D.,  r,.  f  44;  30,  f.  44:  V.  H  ,  107,  f.  1-4;  Schin. 
At.,  82,  f.  \:\,  14. 
3,  4.  "  KiMBRiATCM,  Wall.,  M.  .1.,  ISoS,  p  247,  12,  f.  4-9; 

Lens,  i,  p.  ion;  II,  p.  105;  Sclim.  At.,  82,  f.  «,  7. 
^'loriHu. 
"      5,6.  "  FTMBRiATiiM,  Gmn. ;  V.  H.,  109,  f.  1,  .".;  Scliiii.  Al.. 

99,  f.  10-K5;  toniiii  major,  and  forma  piisilla.     St. 
*  Monica. 

Fig.   7.  "  CALiFOKNKn;M,  Gnin.  St.  Monica.  V.  II.,  lOS,  f.  11. 

FigH.  8,  9.  "  iN-Ki.WiANS,  Urov.     St.  Monica.     Fig.  8,  var.  mioro- 

pora,   (rrun. ;  fig.  9,   var.  Yiicatensis,  (Jrnn.;  V. 
H.,  90,  f.  :{,  4.     (OdxmtdUi). 
Fig.    10.  •■  (ONjsimii.k,  (Irnn.,  (Orfon/e//a).     St.  Monica.    V.  H., 

108,  f.  2. 
"      ]i.  "  iiiREOUi.ARE,  var.  (Jrnn.     IVtersltnrg,  Va.     V.    H, 

lll.f.  10. 
'      12.  "  iNKi.KXiANS,  Biddiiljiliia,  var.  araeopora.    St.  Monica. 

V.  H..  110,  r.  2. 


U;  f 


:i!. 


f 


I'la'..   X(    IX. 


li 


>  ..#-^ 


If,  ■  ? 


i  [ 


I  <■ 


i^ 


Fig. 

1. 

.( 

2. 

f4 

Figs 
Fig 

3. 

■».  (7). 
5. 

u 

fi. 

« 

8. 

Fig." 

9,10. 

(( 

11,  12. 

ft 

13,  14. 

Fig. 

i6. 

Figs 

16,  18 

Fig. 

17. 

IM.ATE  I". 
riKiircK  iiiaikciilticd.  .5(MI  dlunietf^rH. 


Thickratium  tabellakium,    Brightw.   var.    deploHtiotn,    (xrHn.; 
Camj.,  Bay.     Sdin;.  .\t.,  77,  f.  1. 
"  VENTLOSUM,   Cirev.;  (xiilf  c.f  Mexico.      vSchm.  At., 

77;  f,  8. 

'■  BIILLOSUM,  Witt.;  ('ain|).  Bay;  Sclim.  .\t.,  78,  f.  33. 

"  VENTTi.osiJM,  (Jrev.;  ("amp.  Hay.  Schm.  At.,  77, f.  9, 7. 

"  TKii'AKTiTUM,  (iriiii.;  Caiiip.  Bay.     V.  H.,  110,  f.  8. 

(BiHdiilphia). 
"  HKTER<,»(>KiTM,  (inin.;  St.   Monica.     ( Biddulpliia), 

V.  H.  112,  f.  2. 
"  INTERPITNCTATUM, (iiun.;  Xottingluini,  Md      Schm. 

At.,    7t>,    f.    7.     .V   very  variable  species  often 

apparently  clnsely  related  to  T.  elegans,  Grev. 
"  TBisci'U'M,  Bailey,  Camp.  Bay.     Schm.  At.,  78,  f. 

0-8;  112,  f.  11-18. 
"  PARAI.LKLUM,  Grev.;  Monterey.  Schm.  At., 75,  f.  11, 

12. 
"  Harrihonianlm,    Nor.    and    Grev.;     Camp.    Bay. 

.■^chm.  At.,  7-%  f.  14-16;  T.  M.  S.,   1861,  p.  76, 

9,  f.  9. 
"  I'ARALiiELU.M,  lornia  trigona,  Grev.;  Schm.  At.,  76, 

f.  14. 
alternans,  Ehrb.;  Schm.  At.,  78,  f.  10,   12    (9-20). 

(Jamp.  Bay,  etc. 

"  .swERt'ENDUM,  .\.  S.,  Schm.  .\t.,  76,  1".  8.     Notting- 

ham, Md. 


il 


( 


'l.'.l,  ( 


A"  ■  rt .  vfi  fVH^'  'v-  '-i    .••  / . 


h 


i  i 


1, 


PliATK  (1. 


Fiiiiircs  ni:iv;iil(l('(l  'itKi  dliimfHTs. 


i' 


Fis. 


Figs 

4,  ft. 

it 

Fig. 

.;,  7. 

8. 

t( 

9  (1'2) 

t( 

10. 

a 

II. 

>. 

18. 

14. 

lo. 
U). 


Triceratium  ANTiM..\Rr.M,  Clevf.,  1H78,  Sihm.  .\t.,  '.»«  f.  14. 

"  KrrroNiANUM,  Grev.     Maryhind.     T.   M.  S.,  18B5, 

j.,8,2,  f.  18. 
"  !*oMNO(EROs,  Khrb.,  Sill.  J.,  April  lH4o,  p.  :V29.  4,  f. 

28;   M.  J.,  1853,  p.  248,  4,  f.  1.;  S<-lun.  .M.itfi,  f. 

II  ;  77,  f.  21. 
"  siBi  oRNintiM,  (^run.,  Camp.  Bav,  Scliin.   .\t.,  It9,  f. 

15,18.     <ii!iniil«'K  in  radiite  Heries. 
"  KI.EGANS,  (irev.     (.'amp.  Bay,  Hclmi.  .\t.,  iti),  f.  11. 

"  Mah*l.^ni»i»'UM,  Brijfht.     Maryland.     M.  J.,  185t), 

PI.  17,  C.  17;  Sm.  ^^p.  T.,  No.  601. 
PiN(  TATUM,   BriKht.,  M.  J.,   1856,  p.  275,  17,  f.  IS; 

Sclim.  At.,  76,  f.  19,20. 
«'  Brownianum,  (;rev.,  T.  M.  S.,  1861,  ]k  72,  8,  f.  16. 

Maryland. 
"  KdBUSTUM,  (^rev.,  T.  M.  S.,   1861,   p.  71,  8,    f.    15. 

Maryland. 
"  RECEPTUM,  A.  S.;  Schni.  At.,  81,  f.  10.    Santa  Monica  ; 

related  to  T.  Shadboidtii,  Bail.;  and  T.  accep- 

tnm,  (Jrov 
"  \MOENlM.  (inn-.;  T.  M.  S.,  1861,  p.  75, 9,  1.7.     Mary- 

land. 
"  ORNATUM,  (irun.     CHmp.  Bay.     Sohni.  At.,  98,  f.  l8. 

«  Pentacrinds,  Wallach.  Camp  Bank.  Sclim.  At.,  98, 

f.  7.  PreviouMly  figure*!  a«  Am.phitetras  Ornata. 


H  1  .: 


I 


I'h.t..  s 


14. 
S.,  I8H0, 


Marv- 


IM.ATK  (MI. 

KlKurcs  inimnlllid  'iiKi  (lliiiiiflrrs. 


\}<    i 


Fiir.    I. 


I !  ; 


!  i 


V\>is.  -2, 

(•^). 

ii 

I'iu.    '.i. 

•  t 

"      4. 

(( 

•      «. 

(f 

7. 

s. 
9. 


li. 
12, 


Tkukkath'm    Mostkkkyi,    Hrixlit;    ^'iiiita    MonicK ;    Scliiii.   At., 

94,  C.  1,  ■_',  3. 
si'ixosi'M,  IJitil.;  (  iimi).  Hank.     Schiii.  .Vt., ST,  I'.  2,  X. 
.siiimonNit.VTli.M,  A.   S,;   \(>tlii»Kliaiii,   Md.,  Hchm. 

At.,  9.\  f.  1. 
•lUCATioNSK,  ( iniii.;  ('aiiip.  Hay.     Scliiii.  .\t.,  7(»,  I',  lo. 
« (»Ni>i('tiuuM,  Hrif(lit.;  Ndttingliam,  M<1.     Sdiiii.  At. 

7rt,  r.  27. 
MUHKATUM,  Hri);lil.;  <'a»H).  Bank,     Siliui.  At.,  SH, 

f.  s,  !i. 
KiscHKiii,  A.S;  Patuxel  Kiver.     Sdim.  .\t.,  7(),  ('.  34. 
TKHXEt-ATUM.  ( Jrev,  var.;  Nottingham,  Mtl.     S<'hni. 

At.,  7(>,  1'.  ;!3. 
oHsciiKi'.M,  forma  minor,  (Jrtiv,:     Pisoataway,    Mp. 

.Si'hm.  At.,  7H,  f.  o. 
VAi-iDU.M,  (iruy.;  Santa  Monica.  Si-lim.  At.,  94,  f.  5. 
I'NcnNATUM,  Grnn.;    Pacitic  Coast.     Schm.  .\t.  94, 

1'.  4. 
DUKii'M,  BriKl't.     (.'amp.  Ray.     .\n  al>nurmai  Turin  ; 

Sfhm.  At.,  78,  f.  26. 


/, 


'!:/l 


I'l,,t-Cli 


Q 


i»liATK  ("tit. 

Klifurcs  inatrnltlod  "iIki  illjiiiK'tiT'*. 


KIr.    1.  A(TiN<MVi'Mis  (HAsrtUs,  W.  S. ;  V.  H.,  12"),  1'.  H,  ^  Kiipodisoiis 

criiHHiiH  ;  H.  H,  I).,  I.  p.  24,  4,  f.  41  ;  {nrtinncyclu.- 

octonnriuK  and  cnminw. ) 
"      2.  AiTiNoPTYinis  HKLioPKi/iA,  (iriin.     NottinKlmiii,  M(l.     V.  H., 

12H,  f.  3;   V.  H.,  109,  f.  2. 
"      3.  "  BisMAKKii,  A.  S.,  Schm.  At.,   i>l,    f.  4.     SiintH 

Monica. 
"      4.  A(  TiNOiY.Jurs  NiAOAKAK,  H.  L.  a.,  A.  Q.  J.  M.,  ls78,  p.  17,  3. 

f.  10 :  .1.  M.,  1«79,  135,  6,  f.  10. 
"      .■).  "  MONiLiFoiiMis,  RallK.;  V.   H.,   124,  f.  9.  \.  a? 

Allie<i  to   KupoHiscns  crutwns,   W.  S.,  compare 

%.  I. 
"      (i.  '*  TKNiTis^iMUs,  Cleve.,  1878,  p.  21,  5,  f.  34;   J. 

M.,  187<.t,  p.  13(1,  .5,  f.  134;  V.  H..  125,  f.  2. 
"      7.  AcTiNoPTYCHiJs  I'l'iA'HKM.rs,  ( irun.;  V.  H.,  123,  f.  5. 

KiK8.  H,  9,  10,     HiDDULi'HiA  i.AKVis,  Ehrl..   Mik.,  33,  15,  f.  16;  Sill.  .1.,   1842,  2, 

f.  8;   Bail.,  Gailionella.    Present  specimen  from 

Nebraska. 
Fix.    11.  "  oiciAs,  Ehrb.  Mik.,  33,  12,  f.  11.     KosHil.     Vit.     Of 

doubtful  value. 
"      1*2.  "  OKMS,  Ehrb.     Oregon.     Mik.,  33,  no    Biddiilphia, 

but  Mclosira. 
"      13.  HuTTOWiA  Rit  HAKDTil,  var.  (iTun.     Virginia.     Scbni.  At.,  IH), 

f.  4. 


w  I  ':  i 


\ 


Il.r.-c 


PLATE  CIV. 

FlKuroH  magninod  TjOO  dlametera. 


Fig.    1. 


II 

2. 

II 

3. 

II 

4. 

Figs 

6, 

r». 

Fig. 

7. 

II 

8. 

II 

9. 

II 

10 

(17) 

Fig8 

11 

12,14 

Fig.  13(lfi). 
Figs.  18,  19. 


Trioeratium  qranoe.  Bright.,  var.  of  Tr.  faviw  fossil,  Peters- 
burg, Virginia;  M.  J.,  1863,  p.  249.  4,  f.  8; 
Sc'hm.  At.,  8-.',  f.  5.     T.Jav\u>,  82,  f.  13,  14. 

"  ANTEDiLUViANUM  ( Anipliltetms),  V.  H.,  109,  f. 

4,5. 
.  «  UNDULATUM.  (Ehrb.)  Brinht.,  M.  J.,  IS.W,  p.  248; 

V.  H.,  116,  f.  7.  Dilylium,  Nottingham  de- 
posit. Mil. 

«  iNEi.EGANH,  Orev.;  T.  M.  8.,  1866,  p.  S,  2,  f.  21  ; 

Sdim.  At.,  81,  f.  16.    Santa  Monica,  Cal. 

"  reticumtm,  Ehrb.  Milt.,  33,  16,  f.  13;  18,  f.  50; 

M.  J.,  1853,  p.  V51,  4,  f.  17. 

"  0UTU8UM,    Ehrb.  Mik..   18,  f.  48,  49 ;   T.  M.  8., 

1866,  p.  8.    FosHil,  Richmond,  Virginia. 

♦«  K  AINU,  Pchultze ;  Bull.  Tor.  Bot  Club,  PI.  89,  f.  6, 

March  1889.     Artesian  well,  Atlantic  City. 

"  UNDULATUM,  Ehrb.,  (Virg.),  M.  J.,  1853,  p.  250, 

4,  f.  13;  V.  H.,  116,  f.  13,  var.  Deposit, 
Petersburg,  Virginia. 

"  biquadratum,  Janish,  Schm.  At.,  98,  f.  4  and  f.  5. 

Letoii  Bank. 

"  8TRIOLATUM,  Ehrb.     Attached  to  smaller  forms  of 

algae.  Front  views  (11,  14)  show  a  fine  but 
distinct  hexagonal  areolation.  M.  J.,  1853, 
p.  250,  4,  f.  10;  T.  M.  S.,  1854,  6,  f.  3 ;  S.  B. 
D.,  5,  f.  4,  6. 

"  Ehrenberoii,  Grnn.;  (Discoplea  undulnta),  Ehrb. 

Fossil  deposit,  Nottingham,  Maryland  ;  V.  H., 
115,  f.  7,  8. 

"  UTHODKSMiUM    (Minusculum),    Grun.      Deposit, 

San  Diego,  California;  V.  H.,  116,  f.  2-4. 


t 


I'l.ll.  (•I\' 


iVLATK  CV. 

Klmircs  iiiiisiiirlp<l  riiHi  illiiiiiettTs 


Fis{s.  3,  4. 
"      0. 


«. 


Fit;.     1.  rmcKRATIITM     TRIDAfTYMIM,    lilMKllt.;    M .  .1 .,   1853,  |).    24s.    4,    f.    'A. 

Schni.  At.,  NT,  r.  r_>.     Fossil,  Peterslmrff,  Va. 
-•  "  ''KMnnKctii.ARK.  (Kii.Mlia  Hiitjiitwellii),  M..).,  iHoS, 

,.. -'-Vi,  1,  f  21. 

sKMiciKi  TLAKK,  Aitesijiii  Well  Atliiiitic  City.    Hull. 

Tor.  Kot.  Cliil),  Mari'ii  1SS9. 
AHcrKTM,  v:ii.  Ciilifornica,  <frmi    fornia  tetragoiie. 
MKMKKANACKIM,  liritflit.;   M.  J..  1853,  |i.  251.  4,   f. 

15.      \'ir;;iiiiM. 
Amkricanim,  RaHs.;  Sclim.  At.,  7ti,  f.  3,  28.     Nnt- 

tiiitrliaiii,  \I(i. 
AHcTiciM,  Biiijlil.  \-.\r.  Calitoi-nioum,  liriiii.;  Srimi. 
At.,  71»,  f.  5. 
FiKS.  9,  10.      Hydroskra  TRuji-KriiA,  Wallich  ;  Schm.  At.,  78,  t'.  .3«,  37. 
Fi.!<-    !l.  •    "  ■'  according:  to  i'ritch. 

"       '-■  "  "  Sli.l,.,  Sa.iiaCniz,  Cal. 

"      ';''•  Thickratium  ("alifohmcum.  i  Liiliodcsniiiim)  V.  H..  115,  f.  9. 

UND'.r.ATU.M  (Ijlhudi'smiiirn). 
K'aimi,  Scliiillw',  Artfsiaii  well  Atlantio   f'ity.  N. 

J.     Hull.  Tor.  Hot.  Cliil..,  March  1889. 
RKfUNA,    IftMl).;    Schm.    At,,   97,    f.    3  5.     Atlantic 

City,  N.  .].,  artesian  well. 
'INXAMONIITM,  (irev.     Nearly  allied  to  Ceslodiftcw; 
with    niagiiial    spines,   alioiit    5   on    a    .tide    it 
would  he  ('exhidijicm ;  without  the  spines  it    is 
Triceratiuin.     Canip.  Bay.     \'.  H.,  ]2(),  f.   I. 
Figs.iy,2(),21.  I'.uoniA  Jans(;hii,  tirun.;  Santa  Monica.     \'.  H.,  127,  f.  1-4. 


"      14. 

Fi-s.  15, 

Itl 

Fig.    17. 

"       18. 

i'lui.^CN' 


J4h.  4,  f.  ;{. 

'•iirg,  Vh. 
M. .).,  lH-)3. 

City.    Hull, 

I  tetragoiie. 
I'.  251.  4,  f. 

28.     Xnt- 

nin.;  Splim, 

37. 

16,  f.  9. 

ic   City.  N. 

89. 

.     Atlamif 

'  ^fUodincuM ; 
it    .'<i(ie    it 
ipiiu^s  it   i^^ 
120.  f.   1. 
1-4. 


■   tl 


1  r 


n 


1 

Hi 

i  ill  I 


r    tl 


1   i}  :  t 
1  ■*'  Si 

it  i 


PLATE  (Vr. 

Kisfuri's  uiiii;i\it))>(l  r-m\  (lijuncifrs. 


Fiff-    '•  TrufKKAiii'M  <('iTiiT,iM,  Briiflit,  M.  J.,  1S53,  p.  2")0,  4,  f.  9:   Sdim. 

At.,  h:^,  r.  11-1(1.     (iiilf  of  Mexico. 
"      •_».  "  Ai/iKRNANS,  Elirl).     Camp.  Bay.     S.  H.  I).,  .">,  f   4.") ; 

V.  H.,  1  IS,  f.  (i:  SJchm.  .\t.,  78,  f.  9-20. 
"      3-'i.  "  -^i  i.-LPiTM,  ShiMll..,   T.    M.   S.,  is:.4,  p.  15,  ■_',  f.  4: 

Schm.    .\l.,    7ti,    f.    i)-12;   V.  II.,   109,  f.    7,    S.    . 
»  Ciiiiip.  liay.  ( Iriimiies  li;inlly  iirdiiiiiu'iit  eiKiiiuii. 

"      »;.  "  cDNsiMir.K,  (Irnn.;   V.  H.,   U'S,  f.  2:  Sclnii.  At.,  84, 

f.  18,  14.     Siiiita  Monica. 
"7.  .    "  AiKTiciiM,    forma  Campea(4iiim!i.     Camp.   Hay.     V. 

11  ,  112,  f.  1.     Cellules  iiex.iiiKiilar,  not  so  lect- 
aniiiilar. 
"      8.  "  m  ADiiANCiULAKE,  CIrev.    HaiUa  Moitica,  ('ill.    I'roli- 

alily  only  a  iniadraiignlar  form  of  '!'.  arciiciim. 
llie  celliilae  are  ri'ally  radiate. 
Fi><s.  i^i,  II.  ''  ii!A(;i,icn'.'    Schm.  At,  8ti,  C.  !l,  10.       Crescent  City, 

Otfuoii.     I'iynres  only  slit>iitly  magnilied. 
Fiy.    10.  "  (iHi.iiii  M,  (irun.;   V.  H.,  i  10,  f.  1 1.     <al. 


U 


'  i  ■ 

It 


I'lul.-CX'l. 


PLATE  ('VI  r. 

l''ii;iii'i'>  iiiairiiilic'il  .VHi  diiuiii'lpfs. 


I'iKs.   I,  -J. 
"       :!,   1. 

•■      t>(V)). 


s. 
9. 


n. 


A  M  niii'i;  u:  V  Ni:iiKi>,   I-cwis.     Ailmitii    •<ea-t(cpiir(l,   Niirrmmsi'ti. 
l-'iiiiiifi  K")  l;irjje,  If.  \,.  S.      I,(>ni;lii  <>('  vulvf 
.11(12".  ('I    .('D-l"..".     \.  Mii.l  i;.  S|.„  ().  I,  (•  (1. 
•'  cnxsKiMA.  I.cwi-^  N.  mill  H.,  1,  f.  'i.      F'ruf.  .Smiili 

writes:   '•  1  liclifvc  I  ;itii  tlir  uiily  iiiii' wlio  I)m> 
>|i<'('iiiii-iis  III  tlli^  (liiitom  ;    it   is  --r.'iiccly    si- 
lin-.iiis. 
"  Cd.sT.VTA,  ( )'Mr:irv.  Iri^li;   I'lTdliL'tillsly  cui'iilli'il  ;is 

N.  Aiii.Tiriiii.     M..J.,  \'ul.  l.\.,  N..  S..  !•_>.  f.  (I. 

'rvv;;;\;"M  Monikrioyi.  IJriulit-v.  Coiiied  t'mm  I'ossil  diii- 
toiiw  of  New  /omIuihI,  (PI.  \I,  f.  "Jo,)  to  show 
the  t  .xtii'ine  lunvi'xity  of  llic  tt'riiiiii;il  vmIvimiI' 
a  t'riistiilc. 
SiiiiKKi.i.A  rci.riiKA,  Lewis  N.  and  11.,  p.  4,  1,  I  1.  .Mlied  to 
S.  /(iKfuond  ind  S.  I'ximiu.  St.  Mary's  Kiver. 
<ia.,  salt  niarsh,  Murida.  Lftitftli  of  v.ilvc 
.(t(i;"."-- 009". 

Masiik.kaka  loi.RiAN.s,  Lewis,  p  84() :  Proe.  A.  N.  Sc.  |il.  ;i,  I".  9. 

Trkkhai'Iim  M()Nri:iv'i:vi.  cA/c  almve  tij;.  H 

M Awiticdi.oKA    AN(;ii,\rA.    Lewis   .V.  anil    P.,   PI.  ".'.   I'.    I.    The 
i/iaiiides  ,ire  really  arraiiycd  in  rciiidar  iiniii- 
eiiDX  iirder.     A  tlaipie  City.  Rockawiiy,  etc 
"  stTltMAii(ii.\ArA.  Cleve  anil  (m-..    N.,  and  S.  K.  D.,  1. 

r.  2.  'I'lie  titriire  of  this  diatom  is  diHtM'ently 
represented  in  si/.e  liy  diHi-renl  authors:  it  is 
prohahly  oidy  aliont  half  as  larije  as  here  rep- 
reseiited. 


msfti. 

Vlllvi' 

r  ti. 


^niil  li 


'ImI.'CX  11 


•'1;;  M 


PLATK  CViri. 

KiKun's  iiiiiniiitlod  ■>(ki  (lliiiiielers. 


r-"iu.    1.  Tr'cKHATiiM    iMi.KuLUH,  Eliili.  Mik.,  ;<")H,  21,  r.  17. 

'•       :;.  "  piLKUs,  P:hrl).  Mik.,  19,  f.   18. 

'      M.  "  OBTUsuM,    Hriuhl.    .VI.    J.,    IX.W,   J).   -J.")!,    1,  I'.    20. 

Virtrmia. 
"      4.  A.Ml'iiiTKiKAs  uitNAiA,  (iriv.;  :=   Trie.    |it'ii'.ii<'rimiiii,  Wailai'h,  M. 

.i  ,   1H.^S,   :2,  r.   10-12;  T.   M.  S..   1S61,  p.  45; 
Sclini.  M.,  <JH,  r.  IS. 
Fi^s.  "),  ti        C'vMATiii'i.KiJUUM   Ki.i.irriciJ.M,  S.   H.   D.,   10,  f.  .SO.      Normal  and 

nvisinl  t'oir,),  in-  forma  spiralis. 
Fiir.    7.  CosciXODist'Us,  Caliroinia.     Do  ji)t  recosiiii/.e  thiw. 

"      S.  Am.iscus  MtTAiiii.ls,  (Ircv.     .Moiiieiey.      T.  M.  S.,  llStiS,  fi.  44,  PI. 

2,  r.'i;. 

<).  Ai  riNorTYtnufs  biskitinakium,  Kiirli.  .\!ik.,  iW,  Iti,  t. -'i.    One  of  the 

,         form.s  of  \.  l'',liieiilM'r>;ii. 
"       10.  "  .ji-iXAUius,  Khrl..,  15.  K.,  1,  f.  20;   Mik.,  :;:;,  f.  1(5. 

i'ijrs.  11,  12.    C'osciNonisrus  1'rNCTATr.s,  Ehrl).  Mik.,   18,  f.  40,  m  :  Sm.  Sp.  T., 

No.  97 
li'.r.    ni-l-").    ."^UKiKKi.KA  fA.Mi'Yi.oniscus,  K.  F].,  28,  f.  2t) :     Kal(..  .'J,  f.  4.     Tin- 

samf  as  Campylodisciis  spiralis,  which   is  also 
l>"tter  proportiont-(i.     .*>ee  Plate. 
*•       Hi.  THicEKATir.M  RKTK'Ci-lTM,  Siiim.   .\t.,  7tl,  f  2»i.     Compare  PI.  h»4. 

f.  o,  6. 


ii,(A'lll, 


I'.   20. 


I 

1 


!  t!ii 


Fn.ATK  (MX. 


Kiu'".  1^").        I>i'ii.Ml.\  NKKVKRso,  S.  H.  D.,  PI.  47.     FIrs.  1  ;m(l  -1  iiiii>,'ni(ied  SOd 

(liHineters.      Fi^s.    3-ii    various    pcwitions    ma)j;nifieH 
2o0  diHUielers,  attached  to  steiii  of  Folysiphonia. 
"      H-9.        ls'ni>MiA    KNERVis,  S.    B.   I).,   PI.  4H.     Figures  K-9  inagnitied  .5(1(1 

(liaineters.     Fifjures  6-7  magnified  'i-'iO  diameters. 


^ 


^.^^ag^^^muh 


I'Imi,.  CIX-. 


ied   50(1 
fjni  fieri 
kia. 

iied  5(1(1 
ters, 


ifi 


1  ! 

I 


I         .1'   -     ' 

if     I 


u 

; 


if    I    ' 


' 


i  i..l-\ 


I'LATi']  ex. 

KiL'uri'x  iiiiiuiiilli'il  .'iiiii  (liiiini  tri>. 


Fig.    1.  CorJciMiDisco  iMiiKii'.-.  A.S.,  Scliiii.  Ai.,  i;i'.l,  r.  I.     Simla  Monicii. 

•_'.  ThICKHATII  M  CaM1'KA(  IIIAMM. 

Ki^s.  3,  4.       Cami'YI.ouiscis  BK'osTATA,  \V.  S.;    r.  M.  S..  l,s.')4,  ]>.  7"),  li,  f,    1  ; 

V.  H.,  75,  f.  2 ;  Schni.  At.,  ."i%  f.  I,  o. 
Kig.   .').  ('YcLiiiEi.i.A  (  ((MPTA,  viir.  Boddiiicii,  Kii.:  V.  H,  92,  t'.  Iti-'i'J:  V. 

H.  98,  f.  21,  etc.     Br.  Col liiit. 

Kigi*.  6,  7.        liiDDLLPHiA  ANGii.ATA,  A.  S.:  N<)ttin>rliani,  .M(l.     .Schm.  At.,  141, 

7,  8      \'alveH  iirf  marked  Hoinew'iat   like  Conrivo- 

(Hacuh. 
Kig.    H.  HYALODii^cufi  RETif;uLATt>,  A.  S.,  Sclun.  At.,  140,  f.  7      M(tnterey. 

Figs.  9,  1(1.      BinnuLPHiA  mkmbranacka,  L'leve  ;  W.  Ind.  diatom;  o,  f.83.    Near 

ZygoeeroK  Balaena  of'  F^hrl), 


> 


IMAGE  EVALUATION 
TEST  TARGET  (MT-3) 


1.0 


1.25 


lii|2£    |2.5 

*^  Kii   12.2 


u  u4 


1.1  l.-^ll^ 

^.  !IU4 


■7] 


VQ 


'/ 


Photographic 

Sciences 

Corporatioii 


23  WIST  MAIN  STREiT 

WiBSTER.N.Y.  14580 

(716)872-4S03 


PLATE  CXt. 

F'iKnres  inaKnitlrrI  rM\  (iiiiiiiotcrs. 


A 


Figs.' 1,2.         Xavki'la    maoulata,    I'^wanls,    Stiiiironeis    niuonliita,    BBiley. 

M.  .1.,  ISfiO,  p.  129;  Schm.  At.,  <>2,  f.  10;  Hm.  Sp. 
T..  No.  29li.     Nf.ir  latiHHiinti,  vide  Sfhnlt/.e's  ti(f., 
,  Bill.  Torrey  Hot.  Clnh  1887,  April. 

Fig.   H.  "  PRKTEXFA,  var.  (Eliri).),  (irimdl.     Camp.  Rav. 

"      4.  TRiCKRATfCM  sm.PTL'.M,    vai'.    (inindl.     Atlantic   ('ity,   Nottinp- 

Itam,  etc.,  Sclini.  At.,  7'i,  f.  12. 
"      5.  All. istuTs  !'Ki'iN-o,«n's,  Bail,     (tiilf  Mexico.     T.  M.  S.,  IMtW,  ji.  49. 

I'i.  .S,  f.  !:'.;  Schm.  At..  31,  f.  6,  7  ;   108,  (.  10. 
''      ti.  "  si'iNosT's,    T.    Christian,  closely    allied  to   (Hyphodiifcus. 

Atlantic   City,  I'.iill.   Torrey    Bot.   Clnl>,    Maroh, 
1889,  p.  73. 
"      7.  Xavh'I  l.A  Maroinata   i  Masto^hda),  Lewis  N.  and  R.  Kp.,  p.  2«, 

2,  f.  1,  from  photo.     Charleston,  South  CaroWiia. 
Figs.  8,  9.  "  aRiKNUi.KRi,  A.  S.:  Schm.  At.,  12,  f.  ;{5-87.     C. 

"      10.  '•  vi'Li'iNA,  (V    H  ,  9,  f.  18),  a  var.  of  N.  acuta,  K.  B.,  3, 

f.  69  ;  Sm.  Sp..  Xo.  240.     Lake  Michigan. 
"      11.  SfRiHRLLA  N'onii.i.si,  X.  S.     Sporanglal  form,  S.  B.  I).,  8,  f.  »)3.=s 

Siir.  splendida,  var.     Lake  Michigan. 

12.  Cos<;iNODi8<M'.s  VKi.ATi'.s?     From  photo.,  S.  {).,;  Schm.  .\t.  62,  f.  10. 

13,  14.     BiBLARiuM  EMJPTicuM,  virs.,  Ehrl).  Mik.,  33,  2,  f.  o;  33,  12,  f. 

2 ;  M.  D.,  43,  f.  38. 

"       15,  16.     MfiRiutuN   (;iRClll,ARK,    var.   tontorta,    Lake    Michigan,  freipient. 

"    .  For  Mer.  coastrictuni,  Compare  Kalfs.  .A.  X.  H., 

1843,  p.  4oH,  18,  f.  2 ;   Rah.S.  D.,  1,  f.  2 ;  and  S.  B. 

D.,  32,  f.  278. 

Fig.    17.  EiiPomsc'Us  R00KR.SII,  (Argus,  var.)     Artesian  well,  Atlantic  City, 

Schm.  At ,  92,  f.  2-6,     From  photo. 

"      18.  Triceratiim  Aaiericaxim,  Ralfs.,  Schm.  At.,  76,  f.  3,  20.     Arte- 

sian well,  .Vtlantic  City. 

"      19.  Cymbella   hotinuata,  H.  H.  C.     An  extreme  form   of  this  is 

called  l>y  |{ailey.  (Jym.  gihha.     Griinow  calls  the 
same  diatoms  Knci/onema  triiinyulare. 


Figs. 


t 


1 'hit.  .CXI 


i 


I'i! 


PTiATE  CXIl. 

Flirnros  mmcntlled  ri(H»  diameters. 


KiK.    1. 


a 

2_ 

(1 

8. 

FiK-< 

4,  0 

Ki«. 

(J. 

i< 

7. 

i( 

s. 

K 

9. 

■  ( 

10. 

i( 

n". 

it 

12. 

(1 

13. 

(1 

14. 

>( 

15. 

Amphu'LEItra  maxima,  W.  and  (Ihase,  2,  f.  5.     Oreuoii. 
MKF.Of<lRA  ARBNARIA,  Rab.  2,  f.  5,  eti". 
A'TINOPTYCHUS  IRRKOULARE,   V.   H.,    l32,  t'.  11. 

.Melosira  undhlata,  Slide  and  S.  B.,  2,  f.  9. 
(  <).i<(;iNODist'U8  DENARIUS,  Sell.  .\t.  •'J7,  f.  24.     Atlantic  City. 
Tkioeratium  suhratuxdatum,  Si'hm.  A(.,  itS.     Atlantic  City. 
CosciNODiscis  MARGiNATU."*,  K.  B.,  1,  f.  7.     .\nier. 
Stauroneis  Icostaukum,  K.  B.,  29,  f.  10, 

•'  piiYLLODES,  K.  B.,  29,  and  Ral).,  9. 

lineata,  K.  B.,  29,  f.  o. 
.\mi'Hoba  fi.exuosa,  Lens.  Vol.  2,  No.  2,  PI.  1,  f.  3. 
Stephanodiscus  A8TR.EA,  V.  H.,  9?,  f.  9,  vEf.  nilntillala. 

DlS'.LOPEA  OREGONICA. 

\ir//*('HiA  bilokata,  not  half  luit  whole  frimtiile.     Compare  Plat* 
48,  f. .-),  6;  8.  B.  I).,  Vol.  1,  p.  42,  PI.  15,  f.  113. 


•lutoCXll. 


